5th Grade Geometry Formulas

1. Area

1.1. Area of Rectangles

1.1.1. Area of Squares

1.1.1.1. A = l x w

1.2. Area of Circles

1.2.1. A = Pi x r^2

2. Volume

2.1. Volume of a Rectangular Prism

2.1.1. V = l x w x h

3. Perimeter

3.1. Perimeter of any Polygon

3.1.1. P = s + s + s . . .

3.2. Perimeter of a Rectangle

3.2.1. Perimeter of a Square

3.2.1.1. P = l + l + w + w OR P = 4s

4. Circumference

4.1. C = Pi x d OR C = 2 x Pi x r

4.1.1. d = diameter; r = radius; Pi = 3.14