Area and Perimeter

Front

What is the formula to calculate the area of a rectangle?

Back

A = length x width (A = l x w)

Front

What is the formula to calculate the perimeter of a rectangle?

Back

P = 2(length + width) or P = l + l + w + w

Front

If a rectangle has a length of 10 feet and a width of 5 feet, what is its area?

Back

50 square feet (A = 10 x 5)

Front

If a rectangle has a length of 8 cm and a width of 3 cm, what is its perimeter?

Back

22 cm (P = 2(8 + 3))

Front

What is the area of a square with a side length of 4 feet?

Back

16 square feet (A = 4 x 4)

Front

What is the perimeter of a square with a side length of 6 cm?

Back

24 cm (P = 4 x 6)

Front

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

Back

5 cm (P = 2(l + w) => 30 = 2(10 + w) => w = 5)

Front

What is the area of a rectangle with a length of 7 m and a width of 2 m?

Back

14 square meters (A = 7 x 2)

Front

If the area of a rectangle is 36 square feet and the width is 4 feet, what is the length?

Back

9 feet (A = l x w => 36 = l x 4 => l = 9)

Front

What is the perimeter of a rectangle with a length of 12 ft and a width of 8 ft?

Back

40 ft (P = 2(12 + 8))