**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 I

i (unit imaginary number)

Icosahedron

Identity

Image

Imaginary Number

Imperial System

Improper Fraction

Incenter

Inch

Incircle

Incircle of Triangle

Included Angle

Included Side

Income

Increase

Increment

Indefinite Integral

Independent Event

Independent Variable

Indeterminate

Index (power)

Induction

Inequality

Inequation

Infinite

Infinite Series

Infinitesimal

Infinity

Inflation

Inradius

Inscribe

Inscribed Angle

Insurance

Integer

Integral

Integrand

Intercepted Arc

Interest

Interest Rate

Interior Angle

Interpolation

Interquartile Range

Intersect

Intersection

Intersection (sets)

Interval

Invariant

Inverse

Inverse Operation

Inverse Property of Addition

Inverse Property of Multiplication

Investing

Irrational Number

Irregular

Irregular Polygon

Isometric

Isosceles Triangle

Iteration