Geometry Formulas

Front

Area of Square

Back

Formula: A = s²

side squared

Front

Area of Rectangle

Back

Formula: A = l × w

length x width

Front

Area of Rhombus

Back

Formula: A =bh

base x height

Front

Area of Trapezoid

Back

Formula: A =1/2h(b₁ + b₂)

1/2 x height x (sum of the two parallel sides

Front

Circumference of a Circle

Back

Formula: C = 2πr or C = πd

2 x π x radius or π x diameter

Front

Area of a Circle

Back

Formula: A = πr²

π x radius squared

Front

Area of a Triangle

Back

Formula: A = 1/2 (bh)

1/2 x base x height