area and perimeter

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around the rectangle, calculated as 2 times the length plus 2 times the width (P = 2L + 2W).

Front

How do you find the area of a rectangle?

Back

The area of a rectangle is found by multiplying the length by the width (A = L x W).

Front

If a rectangle has a length of 10 meters and a width of 5 meters, what is its perimeter?

Back

The perimeter is 30 meters (P = 2L + 2W = 2(10) + 2(5) = 30).

Front

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

Back

The area is 24 square centimeters (A = L x W = 8 x 3 = 24).

Front

What is the formula for calculating the perimeter of a rectangle?

Back

P = 2L + 2W.

Front

What is the formula for calculating the area of a rectangle?

Back

A = L x W.

Front

If the perimeter of a rectangle is 40 meters and the width is 10 meters, what is the length?

Back

The length is 10 meters (P = 2L + 2W; 40 = 2L + 20; 2L = 20; L = 10).

Front

A rectangle has an area of 50 square meters and a width of 5 meters. What is the length?

Back

The length is 10 meters (A = L x W; 50 = L x 5; L = 10).

Front

What happens to the perimeter if both the length and width of a rectangle are doubled?

Back

The perimeter also doubles.

Front

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

Back

The area is 14 square centimeters (A = L x W = 7 x 2 = 14).