Area and Perimeter

The perimeter is the total distance around the outside of a shape.

Add together the lengths of all four sides or use the formula: P = 2(length + width).

Area is the amount of space inside a shape, measured in square units.

Multiply the length by the width: Area = length × width.

P = 2(10 cm + 5 cm) = 30 cm.

Area = 8 m × 3 m = 24 square meters.

Perimeter is measured in linear units such as meters, feet, or yards.

Area is measured in square units such as square meters, square feet, or square yards.

P = 2(12 ft + 10 ft) = 44 ft.

Length = Area ÷ Width = 35 sq ft ÷ 7 ft = 5 ft.