Question

The breadth of a rectangle is 3 cm less than its length. If the area of the rectangle is 88cm square ,find its perimeter.

Answer 1

I-b=3, Ixb=88

(I +b) 2-(1-b) 2 = 4 Ib

(I +b) 2-9=352

(I +b) 2 = 36l

I+b=v361=19

I-b=3, solving

I=11, b = 8

perimeter 2 (I +b) = 39 cm