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

What is the area of a rectangle with a length of 5 in and a width of 6 in?

Back

Area = 5 in × 6 in = 30 in².

Front

What is the perimeter of a rectangle with a length of 5 in and a width of 6 in?

Back

Perimeter = 2 × (5 in + 6 in) = 22 in.

Front

If a rectangle has an area of 40 cm² and a width of 5 cm, what is its length?

Back

Length = Area ÷ Width = 40 cm² ÷ 5 cm = 8 cm.

Front

If a rectangle has a perimeter of 30 m and a length of 10 m, what is its width?

Back

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

Front

What units are used to measure area?

Back

Area is measured in square units, such as square inches (in²), square meters (m²), or square centimeters (cm²).

Front

What units are used to measure perimeter?

Back

Perimeter is measured in linear units, such as inches (in), meters (m), or centimeters (cm).