Order of Operations

Order Relation

Ordered Pair

Ordered Set

ordinal

Ordinal Number

Ordinary Fraction

Orientation of the Geometric Plane

Origin

Origin of a System of Axes

Orthocentre

Orthogonal

Orthogonal Lines

Orthogonal Projection

Orthogonal Projection Ratio

Orthogonal Symmetry

Orthogonal Vector Space

Orthogonal Vectors

Orthonormal Vector Space

Orthonormal Vectors

Outcome of a Random Experiment

Pair

Palindromic Number

Parabola

Parabola in a Cartesian Plane

Parallel

Parallel Curves

Parallel Line Segments

Parallel Lines

Parallel Planes

Parallel Projection

Parallelepiped

Parallelogram

Parameter

Parametric Equation

Parametric Form of a Function

Parentheses

Part

Part of a Set E

Partial Variation

Partial Variation Function

Partition of a Set

Pascal’s Triangle

Path

Pattern

Pencil of Circles

Pencil of Lines

Pencil of Parallel Lines

Pentadecagon

Pentagon

Pentagonal Number

Pentahedron

Pentomino

Percentage

Percentile

Percentile Rank

Perfect Cube

Perfect Number

Perfect Square

Perimeter

Period

Period of a Periodic Function

Period of a Rational Number

Periodic Fraction

Periodic Function

Periodic Number

Periodic Tessellation

permutation

Perpendicular

Perpendicular Bisector

Perpendicular Line Segments

Perpendicular Lines

Perpendicular Planes

Perpendicular Vectors

Perspective

Physical Space

Pi

Pick’s Theorem

Pictograph

Piecewise Function

Pierre Herigone (1580-1644)

Place Value

Planar Graph

Plane

Plane Geometric Figure

Plane of Symmetry

Plane Quadrilateral

Plane Solid

Plane Surface

Platonic Solid

Point

Point of Division

Point of Intersection

Polar Angle

Polar Axis

Polar Coordinate System

Polar Coordinates of a Point

Polar Graph

Polycube

Polygon