Area and Perimeter

Front

What is Area?

Back

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

Front

What is Perimeter?

Back

Perimeter is the total distance around a shape, calculated by adding the lengths of all its sides.

Front

How do you calculate the area of a rectangle?

Back

Area = Length × Width.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (Length + Width).

Front

If a rectangle has an area of 20 square yards and a width of 4 yards, what is the length?

Back

Length = Area ÷ Width = 20 ÷ 4 = 5 yards.

Front

A square has a side length of 3 feet. What is its area?

Back

Area = Side × Side = 3 × 3 = 9 square feet.

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 × Side.

Front

If the perimeter of a rectangle is 30 meters and the length is 10 meters, what is the width?

Back

Width = (Perimeter ÷ 2) - Length = (30 ÷ 2) - 10 = 5 meters.

Front

What is the area of a wall that is 4 feet wide and 4 feet tall?

Back

Area = Width × Height = 4 × 4 = 16 square feet.

Front

If a rectangular garden has a length of 8 meters and a width of 3 meters, what is its perimeter?

Back

Perimeter = 2 × (Length + Width) = 2 × (8 + 3) = 22 meters.