# R

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Radius

Radious

Radius (sphere)

Random sample

Range

Range (Of Data Set)

Range (equation)

Range (function)

Range (relation)

Range (statistics)

Rational expression

Rational function

Rational Number

Ray

Real Number

Real number plane

Reciprocal

Reciprocal (fraction)

Reciprocal (real number)

Rectangle

Rectangle (area)

Rectangle (perimeter)

Rectangular number

Rectangular prism

Rectangular region

Reflection (Flip)

Reflexive angle

Region

Regular Polygon

Regular polyhedron

Relation

Relation and function

Relative error

Remainder

Remainder (subtraction)

Remainder (fraction )

Remainder theorem

Renaming (whole number)

Renaming (fraction)

Repeating Decimal

Repeating Pattern

Rhombus

Right Angle

Right Triangle

Right angle

Right prism

Right triangle

Ring

Root

Root Extraction

Rotation (Turn)

Rounding (measurement)

Rounding (decimals)