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Relationship between two lines that meet at a right angle
objects are perpendicular if they intersect at right angles, i.e. at an angle of 90 degrees or π/2 radians. The condition of perpendicularity may be represented
Perpendicular
Distance from one geometric object to another along a line perpendicular to both
geometry, the perpendicular distance between two objects is the distance from one to the other, measured along a line that is perpendicular to one or both
Perpendicular_distance
Topics referred to by the same term
may also refer to: Perpendicular axis theorem Perpendicular plate of ethmoid bone Perpendicular plate of palatine bone Perpendicular Gothic architecture
Perpendicular (disambiguation)
Perpendicular_(disambiguation)
Mathematical theorem
The perpendicular axis theorem (or plane figure theorem) states that for a planar lamina the moment of inertia about an axis perpendicular to the plane
Perpendicular_axis_theorem
Form of ship length measurement
Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the
Length_between_perpendiculars
Magnetic disk drive recording technology
Perpendicular recording (or perpendicular magnetic recording, PMR), also known as conventional magnetic recording (CMR), is a technology for data recording
Perpendicular_recording
Third historical division of English Gothic architecture
Perpendicular Gothic (also Perpendicular, Perp, Rectilinear, or Third Pointed) architecture was the third and final style of English Gothic architecture
Perpendicular_Gothic
Topics referred to by the same term
Perpendicular plate can refer to: Perpendicular plate of ethmoid bone Perpendicular plate of palatine bone This disambiguation page lists articles associated
Perpendicular_plate
Point Perpendicular is a point at the southern tip of the Beecroft Peninsula and at the northern entry to Jervis Bay, in New South Wales, Australia. It
Point_Perpendicular
Condition for 3 lines with common point to be perpendicular to the sides of triangle
describes a necessary and sufficient condition for three lines that are perpendicular to the (extended) sides of a triangle having a common point of intersection
Carnot's theorem (perpendiculars)
Carnot's_theorem_(perpendiculars)
Directional planes
Conversely, a line or plane is said to be horizontal (or leveled) if it is perpendicular to the vertical at a given point. By extension, the concept applies
Vertical_and_horizontal
Division of something into two equal or congruent parts
bisector. The perpendicular bisector of a line segment is a line which meets the line segment at its midpoint perpendicularly. The perpendicular bisector of
Bisection
Angle between two planes in space
planes or half-planes. It is a plane angle formed on a third plane, perpendicular to the line of intersection between the two planes or the common edge
Dihedral_angle
Type of chemical bond in white dwarfs
A perpendicular paramagnetic bond is a type of chemical bond that does not exist under normal, atmospheric conditions. Such a phenomenon was first hypothesized
Perpendicular paramagnetic bond
Perpendicular_paramagnetic_bond
Concept in linear algebra
}\mathbf {a} } or a∥b. The vector component or vector resolute of a perpendicular to b, sometimes also called the vector rejection of a from b (denoted
Vector_projection
Mathematical operation on vectors in 3D space
b, the cross product, a × b (read "a cross b"), is a vector that is perpendicular to both a and b, and thus normal to the plane containing them. It has
Cross_product
Line or vector perpendicular to a curve or a surface
that is perpendicular to a given object. For example, the normal line to a plane curve at a given point is the infinite straight line perpendicular to the
Normal_(geometry)
Symbol used in mathematics and logic
similar-looking perpendicular symbol (⟂, \perp in LaTeX, U+27C2 in Unicode) is a binary relation symbol used to represent: Perpendicularity of lines in geometry
Up_tack
Any vertical anatomical plane that divides the body into ventral and dorsal sections
plane that divides the body into dorsal and ventral sections. It is perpendicular to the sagittal and transverse planes. The coronal plane is an example
Coronal_plane
Coordinate system using perpendicular axes
coordinates, which are the signed distances to the point from two fixed perpendicular oriented lines, called coordinate lines, coordinate axes or just axes
Cartesian_coordinate_system
Topics referred to by the same term
Perpendicular bisector construction can refer to: Bisection § Line segment bisector, on the construction of the perpendicular bisector of a line segment
Perpendicular bisector construction
Perpendicular_bisector_construction
Lighthouse in New South Wales, Australia
Point Perpendicular Light is a lighthouse located on Point Perpendicular, a point at the southern tip of the Beecroft Peninsula, in New South Wales, Australia
Point_Perpendicular_Light
One of the four cardinal directions
directions or compass points. The direction is the opposite of north and is perpendicular to both west and east. The word south comes from Old English sūþ, from
South
Vector formula for a rotation in space, given its axis
_{\parallel }\,;} while the perpendicular component will retain its magnitude but rotate its direction in the perpendicular plane spanned by v ⊥ {\displaystyle
Rodrigues'_rotation_formula
Algorithm for the line of best fit for a two-dimensional dataset
regression becomes orthogonal regression: it minimizes the sum of squared perpendicular distances from the data points to the regression line. In this case
Deming_regression
In geometry, the perpendicular bisector construction of a quadrilateral is a construction which produces a new quadrilateral from a given quadrilateral
Perpendicular bisector construction of a quadrilateral
Perpendicular_bisector_construction_of_a_quadrilateral
Act of stopping and disengaging a vehicle and usually leaving it unoccupied
curbside or central parking. Curbside parking may be parallel, angled or perpendicular parking. Parallel parking is often considered a complicated maneuver
Parking
90° angle (π/2 radians)
referring to the vertical perpendicular to a horizontal base line. Closely related and important geometrical concepts are perpendicular lines, meaning lines
Right_angle
Plane curve: conic section
every such parabola is the graph of a quadratic function. The line perpendicular to the directrix and passing through the focus (that is, the line that
Parabola
Concept in linear algebra
W {\displaystyle W} . Informally, it is called the perp, short for perpendicular complement. It is a subspace of V {\displaystyle V} . Let V = ( R 5
Orthogonal_complement
Part of a bone in the skull
The perpendicular plate of the ethmoid bone (vertical plate) is a thin, flattened lamina, polygonal in form, which descends from the under surface of
Perpendicular plate of ethmoid bone
Perpendicular_plate_of_ethmoid_bone
Angle between the rotational axis and orbital axis of a body
an object's rotational axis and its orbital axis, which is the line perpendicular to its orbital plane; equivalently, it is the angle between its equatorial
Axial_tilt
Perpendicular Point Perpendicular Point is a small headland on the West Coast of New Zealand's South Island, overlooking the Tasman Sea. It lies about
Perpendicular_Point
Theorem on cyclic quadrilateral
quadrilateral is orthodiagonal (that is, has diagonals that are perpendicular), then the perpendicular to a side from the point of intersection of the diagonals
Brahmagupta_theorem
Geometry problem
The distance (or perpendicular distance) from a point to a line is the shortest distance from a fixed point to any point on a fixed infinite line in Euclidean
Distance from a point to a line
Distance_from_a_point_to_a_line
Refractive property of materials
understanding light as a wave with field components in transverse polarization (perpendicular to the direction of the wave vector). A mathematical description of
Birefringence
Type of arch with a pointed apex
rectangular forms with an emphasis on the perpendicular, characteristic of the style, known as Perpendicular Gothic in England, of the 15th and early 16th
Four-centred_arch
Various meanings of the terms
geometric notion of perpendicularity. Although many authors use the two terms perpendicular and orthogonal interchangeably, the term perpendicular is more specifically
Orthogonality
dishes. Steak is generally a cut of beef sliced perpendicular to the muscle fibers, or of fish cut perpendicular to the spine. Meat steaks are usually grilled
List_of_steak_dishes
Tetrahedron where all pairs of opposite edges are perpendicular
tetrahedron where all three pairs of opposite edges are perpendicular. It can also be known as the perpendicular tetrahedron. It is also known as an orthogonal
Orthocentric_tetrahedron
Theorem in hyperbolic geometry
(distinct) ultraparallel lines has a unique common perpendicular (a hyperbolic line which is perpendicular to both lines). Let r and s be two ultraparallel
Ultraparallel_theorem
Moving wave that has oscillations perpendicular to the direction of the wave
In physics, a transverse wave is a wave that oscillates perpendicularly to the direction of the wave's advance. In contrast, a longitudinal wave travels
Transverse_wave
Imaginary line halfway between Earth's North and South poles
other words, it is the intersection of the spheroid with the plane perpendicular to its axis of rotation and midway between its geographical poles. On
Equator
Simple curve of Euclidean geometry
The perpendicular bisector of a chord passes through the centre of a circle; equivalent statements stemming from the uniqueness of the perpendicular bisector
Circle
Property of waves that can oscillate with more than one orientation
oscillations. In a transverse wave, the direction of the oscillation is perpendicular to the direction of motion of the wave. One example of a polarized transverse
Polarization_(waves)
Type of electric motor
A radial flux motor generates flux perpendicular to the axis of rotation. By contrast, an axial flux motor generates flux parallel to the axis. The features
Radial_flux_motor
One of the four cardinal directions
compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. North is a noun, adjective, or adverb indicating direction
North
Sailing rig consisting mainly of sails
with sails set mainly in the median plane of the keel, rather than perpendicular to it, as on a square-rigged vessel. Fore-and-aft rigged sails include
Fore-and-aft_rig
Scalar measure of the rotational inertia with respect to a fixed axis of rotation
mass, the moment of inertia is simply the mass times the square of the perpendicular distance to the axis of rotation. The moment of inertia of a rigid composite
Moment_of_inertia
Four-sided polygon
length (equilateral). An equivalent condition is that the diagonals perpendicularly bisect each other. Informally: "a pushed-over square" (but strictly
Quadrilateral
Cylinder whose generatrices are perpendicular to the bases
A right circular cylinder is a cylinder whose generatrices are perpendicular to the bases. Thus, in a right circular cylinder, the generatrix and the
Right_circular_cylinder
Framework of spaced bars that are parallel to or cross each other
which case the second set is usually perpendicular to the first (as illustrated). When the two sets are perpendicular, this is also known as a grid (as in
Grating
Force perpendicular to flow of surrounding fluid
a force on the object. Lift is the component of this force that is perpendicular to the oncoming flow direction. It contrasts with the drag force, which
Lift_(force)
Optical polarization device
light that is linearly polarized along one or the other of two certain perpendicular crystal axes. The behavior of a waveplate (that is, whether it is a
Waveplate
Mathematical vector components
curve, called the tangential component of the vector, and another one perpendicular to the curve, called the normal component of the vector. Similarly,
Tangential and normal components
Tangential_and_normal_components
Theorem in geometrical optics
method. Consider a pencil of light rays in a homogenous medium that is perpendicular to some surface. Pass the pencil of rays through an arbitrary amount
Malus–Dupin_theorem
Points on a common circle
such that OP and OQ are equal distances. Therefore O must lie on the perpendicular bisector of the line segment PQ. For n distinct points there are n(n
Concyclic_points
Mathematical concept applicable to physics
flux is a scalar quantity, defined as the surface integral of the perpendicular component of a vector field over a surface. The word flux comes from
Flux
Special quadrilateral whose diagonals intersect at right angles
which the line segments between non-adjacent vertices are orthogonal (perpendicular) to each other. A kite is an orthodiagonal quadrilateral in which one
Orthodiagonal_quadrilateral
Plane passing through the barycenter of a planetary system
plane, is the plane passing through its barycenter (center of mass) perpendicular to its angular momentum vector. This plane is sometimes called the "Laplacian"
Invariable_plane
Method of vehicle parking
were developed with a fifth wheel, in between the two rear wheels and perpendicular to them, which could be lowered to the ground and used to drive sideways
Parallel_parking
Mechanism with bendable rotation axis
and the planes of rotation of each axle. These planes of rotation are perpendicular to the axes of rotation and do not move as the axles rotate. The two
Universal_joint
Position of the body used for sexual activities
armrests. The receiving partner sits in the penetrating partner's lap, perpendicular to penetrating partner, with their back against the armrest. The penetrating
Sex_position
Circle that passes through the vertices of a triangle
can thus be constructed as the point of intersection between any two perpendicular bisectors of the triangle's sides. It is a triangle center. More generally
Circumcircle
Type of curve in hyperbolic geometry
with perpendicular distance to L equal to that of P. The line L is called the axis, center, or base line of the hypercycle. The lines perpendicular to L
Hypercycle_(geometry)
Type of window design
Europe saw tracery patterns resembling lace develop, while in England Perpendicular Gothic preferred plainer vertical mullions and transoms. Plate tracery
Tracery
Triangular shaped tool
functions by converting a force applied to its blunt end into forces perpendicular (normal) to its inclined surfaces. The mechanical advantage of a wedge
Wedge
Force distributed over an area
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure
Pressure
Going from flight to surface amid strong air currents angled from the runway
maneuver in which a significant component of the prevailing wind is perpendicular to the runway center line. Aircraft in flight are subject to the direction
Crosswind_landing
Architectural style in Britain
centuries) Decorated Gothic or Second Pointed (mid-13th–late 14th centuries) Perpendicular Gothic or Third Pointed (mid-14th–17th centuries) The architect and
English_Gothic_architecture
On triangles inscribed in a circle with a diameter as an edge
will show that △ABC forms a right angle by proving that AB and BC are perpendicular — that is, the product of their slopes is equal to −1. We calculate
Thales's_theorem
Measure of material deformation perpendicular to loading
deformation (expansion or contraction) of a material in directions perpendicular to the specific direction of loading. The value of Poisson's ratio is
Poisson's_ratio
Shape with three sides
explained. A perpendicular bisector of a side of a triangle is a straight line passing through the midpoint of the side and being perpendicular to it, forming
Triangle
Direction and rate of rotation
(or tangential) component v ⊥ {\displaystyle \mathbf {v} _{\perp }} perpendicular to the radius. When there is no radial component, the particle moves
Angular_velocity
Flat surface
plane. Two distinct lines perpendicular to the same plane must be parallel to each other. Two distinct planes perpendicular to the same line must be parallel
Euclidean planes in three-dimensional space
Euclidean_planes_in_three-dimensional_space
Anatomical plane dividing the body into left and right
bilaterians that divides the body into right and left sections. It is perpendicular to the transverse and coronal planes. The plane may be in the center
Sagittal_plane
Electromagnetic wave with oscillations perpendicular to the direction of travel
particular electromagnetic field pattern of the radiation in the plane perpendicular (i.e., transverse) to the radiation's propagation direction. Transverse
Transverse_mode
Cellular structures found in some woods
planar structures, perpendicular to the growth rings, which are visible to the naked eye. In a transverse section (perpendicular to the vertical axis
Medullary_ray_(botany)
Body piercing through the perineum
much more common in men than in women. Although a guiche normally runs perpendicular to the direction of the penis, lateral placements are possible. An anal
Guiche_piercing
Electromagnetic effect in physics
electric current in the conductor and to an applied magnetic field perpendicular to the current. Such potential difference is known as the Hall voltage
Hall_effect
Generalization of Pythagorean theorem
obtuse angle, namely that on which the perpendicular falls, and the straight line cut off outside by the perpendicular towards the obtuse angle. — Euclid's
Law_of_cosines
Mathematical construct in engineering
in the plane of the area) or with a J {\displaystyle J} (for an axis perpendicular to the plane). In both cases, it is calculated with a multiple integral
Second_moment_of_area
Woodworking angled joint
runs the length of the mating surfaces and another where the spline is perpendicular to the joined edges. Common applications include picture frames, pipes
Miter_joint
Game controller for the Nintendo Entertainment System
Broderbund for the Nintendo Entertainment System. It employs a pair of perpendicular consumer IR sensor panels to translate the user's hand movements into
U-Force
Object movement along a circular path
orbits), a ceiling fan's blades rotating around a hub, an electron moving perpendicular to a uniform magnetic field, and a gear turning inside a mechanism.
Circular_motion
Type of pasta
spiraling around the tube; unlike penne, the ends of rigatoni are cut perpendicular to the tube walls instead of diagonally. The word rigatoni comes from
Rigatoni
SI unit of torque
is equal to the torque resulting from a force of one newton applied perpendicularly to the end of a moment arm that is one metre long. The unit is also
Newton-metre
Cut of meat served as individual portion
A meat chop is a cut of meat cut perpendicular to the spine, and usually containing a rib or riblet part of a vertebra and served as an individual portion
Meat_chop
Woodworking tool with the cutting edge perpendicular to the handle
versatile cutting tool similar to an axe but with the cutting edge perpendicular to the handle rather than parallel. Adzes have been used since the Stone
Adze
Style of English Gothic architecture
Edington Priory, combined Decorated and Perpendicular features, sitting between the styles. The Perpendicular style was not fully adopted until three
Decorated_Gothic
Church in Kent, England
is a Grade I listed building and has been described as the grandest Perpendicular style church in Kent. Founded by the Archbishop of Canterbury William
All_Saints_Church,_Maidstone
Ocean shape without winds and tides
the force of gravity acts everywhere perpendicular to the geoid, meaning that plumb lines point perpendicular and bubble levels are parallel to the geoid
Geoid
Church at King's College, Cambridge
University of Cambridge. It is considered one of the finest examples of Perpendicular Gothic architecture and features the world's largest fan vault. The
King's College Chapel, Cambridge
King's_College_Chapel,_Cambridge
Geometric line segment whose endpoints lie on a circular arc
infinitely on both directions into a line, the object is a secant line. The perpendicular line passing through the chord's midpoint is called sagitta (Latin for
Chord_(geometry)
Metamorphic rock
correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression. The foliation in slate
Slate
Quadrilateral with sides of equal length
any parallelogram with perpendicular diagonals (the second property) is a rhombus. In general, any quadrilateral with perpendicular diagonals, one of which
Rhombus
Right conoid ruled surface
parabola and are perpendicular to a fixed straight line which is parallel to the axis of the parabola and lies on its perpendicular bisecting plane. Whitney's
Whitney_umbrella
Classification of a two-dimensional repetitive pattern
glide reflection perpendicular to main axis, mirror axis at 45°. c2mm (c2mm): Centred cell, 2-fold rotation, mirror axes both perpendicular and parallel to
Wallpaper_group
Branch of molecular spectroscopy
is parallel to the principal axis of rotation, and perpendicular when the change is perpendicular to that axis. The ro-vibrational spectrum of the asymmetric
Rotational–vibrational spectroscopy
Rotational–vibrational_spectroscopy
Designated location for parking a vehicle
The automobile fits inside the space, either by parallel parking, perpendicular parking or angled parking. If in tandem parking, whoever pulled in the
Parking_space
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