Formulas

Perimeter
Polygon P = sum of the lengths of all sides
Rectangle P = 2(l + w)
Circumference
Circle C = 2r, or C = d
Area
Rectangle A = lw
Square A = s2
Parallelogram A = bh
Triangle A = (1/2)bh
Trapezoid A = (1/2)h(b1 + b2)
Circle A = r2
Volume
Cube V = e3
Prism V = Bh

 

Home Page