Area and Perimeter

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

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

The area is the amount of space inside the rectangle, calculated using the formula: A = length × width.

Perimeter is measured in linear units such as inches, centimeters, or meters.

Area is measured in square units such as square inches, square centimeters, or square meters.

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

A = 8 cm × 4 cm = 32 cm².

P = 4 × 6 in = 24 in.

Width = (40 cm - 2 × 12 cm) / 2 = 8 cm.

Perimeter measures the boundary length, while area measures the space within.