Question

The length of a rectangle is twice its width.The perimeter of the rectangle is 30cm.Calculate the area of the rectangle.

Answer 1

Explanation:

Let width be w.

Length is 2w.

Therefore:

2w + 2w + w + w = 30 cm

6w = 30 cm

w = 5 cm.

Width = 5 cm

Length = 5 * 2 = 10 cm

Area = length * width = 10 * 5 = 50 cm2