The perimeter of the rectangle is 70 cm, and its length is 15 cm longer than the width.

The perimeter of the rectangle is 70 cm, and its length is 15 cm longer than the width. Find the length and width of the rectangle. Calculate its area.

1. We take for x the width of the rectangle, its length (x + 15) centimeters.

2. Let’s compose the equation:

2x + 2 (x + 15) = 70;

2x + 2x + 30 = 70;

4x = 40;

x = 10 centimeters.

3. The length of the rectangle is 10 + 15 = 25 centimeters.

4. Calculate the area of the rectangle:

10 x 25 = 250 cm ^ 2.

Answer: the length of the rectangle is 25 centimeters, the width is 10 centimeters, the area is 250 cm ^ 2.