ACT Fast Facts - 20 Math Formulas

Front

Formula #1

How do you find the percent or probability?

Back

Front

Formula #2

Standard Linear Equation

Back

y = mx + b

where m is the slope & b is the y-intercept

Front

Formula #3

Slope of a line

a) from a graph

b) given two points

Back

Front

Formula #4

Perimeter of a Rectangle (any Quadrilateral)

Back

P = 2L + 2W

where L is the length

W is the width

Front

Formula #5

Area of a Rectangle

Back

A = L x W

where L is the length

W is the width

Front

Formula #6

Volume of a Rectangular Solid or Cube

Back

V = L x W x H

where L is the length

W is the width

H is the height

Front

Formula #7

Circumference of a Circle

Back

Front

Formula #8

Area of a Circle

Back

Front

Formula #9

Pythagorean Theorem

Back

a² + b² = c²

where c is the hypotenuse of a right triangle

Front

Formula #10

Area of a Trapezoid

Back