PERIMETER 1

Area of rectangle is 48m². Find its perimeter if width is 4m. 

Solution

A = L x w

48 = L x 4

48 = 4L

4      4

12 = L

Now; P =2(L + w)

= 2(12 + 4)

= 2 x 16

= 32m

Hence perimeter is 32m

TRY THIS………..

Area of rectangle is 80m². Find its perimeter if width is 4m.