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 the area of a rectangle is 50 square feet and the width is 10 feet, what is the length?

Back

5 feet.

Front

What is the area of a rectangle with a length of 8 cm and a width of 5 cm?

Back

40 square centimeters.

Front

If the perimeter of a rectangle is 42 inches and the length is 6 inches, what is the width?

Back

15 inches.

Front

What is the perimeter of a rectangle with a length of 10 cm and a width of 5 cm?

Back

30 cm.

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 an area of 24 square inches and a width of 4 inches, what is the length?

Back

6 inches.