# Mathematics Dictionary : Letter R

Math: the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically.
Also, mathematical procedures, operations, or properties.

## Dictionary : Letter R

Random

Random Sample

Range (statistics)

Range of a Function

Rate

Rate of Return

Ratio

Rational Expression

Rational Function

Rational Number

Ray

Real Number

Reciprocal

Rectangle

Rectangular Coordinates

Rectangular Prism

Recurring Decimal

Recursion

Recursive

Reduce

Reflection

Reflection Symmetry

Reflex Angle

Regrouping

Regular

Regular Polygon

Regular Polyhedron

Relative Frequency

Relatively Prime

Remainder

Remainder Theorem

Rent

Repeating Decimal

Result

Retail Price

Revolution

Rhombus

RHS

Right Angle

Right Triangle

Right-Angled Triangle

Rigid

Rise

Risk

Risk Management

RMS

Roman Numerals

Root

Root Mean Square

Rotation

Rotational Symmetry

Rounding

Row

RPM

Rule of 72

Ruler

Run