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 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 a length of 10 cm and a width of 5 cm, what is its area?

Back

50 square centimeters.

Front

If a rectangle has a length of 8 inches and a width of 4 inches, what is its perimeter?

Back

24 inches.

Front

What is the area of a rectangle with a length of 9 units and a width of 8 units?

Back

72 square units.

Front

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

Back

5 feet.

Front

What is the area of a rectangle with a length of 7 cm and a width of 3 cm?

Back

21 square centimeters.

Front

If a rectangle has a perimeter of 50 inches and one side is 15 inches, what is the other side?

Back

10 inches.