Question

area of a rectangular lawn is same as the area of a 18 M long square
if the length of a rectangular lawn is 27 M find its perimeter

Answer 1

The area of the square = 18 x 18
= 324 sq .m
Since the area of square = area of rectangle
Area of rectangle = 324 sq. m
Let the breadth of the rectangle be 'b'
The area of rectangle = length x breadth
324 = 27 x b

$b = 324 \div 27$
b = 12
Perimeter of the rectangle = 2(l+b)
= 2( 27+12)
= 2 x 39
= 78 m