Radian

Radical

Radical Rules

Radicand

Radius of a Circle or Sphere

Radius of Convergence

Range

Ratio

Ratio Identities

Ratio Test

Rational Equation

Rational Exponents

Rational Expression

Rational Function

Rational Numbers

Rational Root Theorem

Rational Zero Theorem

Rationalizing Substitutions

Rationalizing the Denominator

Ray

Real Numbers

Real Part

Reciprocal

Reciprocal Identities

Reciprocal Rule

Rectangle

Rectangular Coordinates

Rectangular Form

Rectangular Parallelepiped

Recursive Formula of a Sequence

Reduce a Fraction

Reduced Row-Echelon Form of a Matrix

Reference Angle

Reflection

Reflexive Property

Regression

Regression Equation

Regression Line

Regular Dodecahedron

Regular Hexahedron

Regular Icosahedron

Regular Octahedron

Regular Polygon

Regular Polyhedra

Regular Prism

Regular Pyramid

Regular Right Prism

Regular Right Pyramid

Regular Tetrahedron

Related Rates

Relation

Relative Maximum

Relative Minimum

Relatively Prime

Remainder

Remainder of a Series

Remainder Theorem

Removable Discontinuity

Residual

Restricted Domain

Restricted Function

Rho (Ρ ρ)

Rhombus

Riemann Sum

Riemannian Geometry

Right Angle

Right Circular Cone

Right Circular Cylinder

Right Cone

Right Cylinder

Right Prism

Right Pyramid

Right Regular Prism

Right Regular Pyramid

Right Square Parallelepiped

Right Square Prism

Right Triangle

RMS

Rolle's Theorem

Root Mean Square

Root of an Equation

Root of a Number

Root Rules

Root Test

Rose Curve

Rotation

Rounding a Number

Row-Echelon Form of a Matrix

Row of a Matrix

Row Operations

Row Reduction

RPM