Question

The area of a rectangular lawn is the same as the area of a 27 m long square garden. If the length of the rectangular lawn is 54m, find its perimeter?

Answer 1

Area of rectangular lawn= Area of square garden
l x b= a x a 
54 x b = 27 x 27
54b = 729
b = 729 / 54 = 13.5


perimeter of rectangular lawn = 2(l+b)
= 2( 54 + 13.5)
= 2 x 67.5
=135 m

Answer 2

area of ground = area of square ground
therefore ,area =27*27=729m2