Area & 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 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 units are used to measure area?

Back

Area is measured in square units, such as square inches (sq. in) or square feet (sq. ft).

Front

What units are used to measure perimeter?

Back

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

Front

If a rectangle has a length of 4 in and a width of 3 in, what is its area?

Back

Area = 4 in × 3 in = 12 sq. in.

Front

If a rectangle has a length of 5 ft and a width of 2 ft, what is its perimeter?

Back

Perimeter = 2 × (5 ft + 2 ft) = 14 ft.

Front

True or False: The area of a shape can be measured in inches.

Back

False. Area is measured in square inches.

Front

What is the perimeter of a square with each side measuring 4 in?

Back

Perimeter = 4 in + 4 in + 4 in + 4 in = 16 in.