Question

The length of a rectangle is three times its width. Find the area of the rectangle if its perimeter is 14 cm.

Answer 1

Answer:

15

Step-by-step explanation:

L= 3W

Perimeter = 2(l+w) = 40

2(3w+w) = 40

2*4w = 40

8w =40

w = 5

l = 3*5 = 15