Question

The length of a rectangle is three times its breadth. If its perimeter is 64 cm, find the sides of the rectangle.

Answer 1

Given perimeter of a rectangle = 64 cm

Also given length is three times its breadth.

Let the breadth of the rectangle = b cm

∴ Length = 3 × b cm

Perimeter = 64 m

i.e., 2 × (l + b) = 64 m

2 × (3b + b) = 64 m

2 × 4b = 64m

4b = 64/2 = 32 m

b = 32/4 = 8 m

l = 3 × b = 3 × 8 = 24 m

∴ Breadth of the rectangle = 8 m

Length of the rectangle = 24 m