Ownclasses

The length and breadth of a rectangle are in the ratio 4:7. The area of the rectangle is 252 sq.m. Find the perimeter of the rectangle.

Answer 1:

Length:Breadth = 4:7

l = 4b/7

Areaa = 252 sq.m

lb = 252

l = 4*21/7 = 12

b = 252/l = 252/12 = 21

Perimeter = 2(l+b)

Perimeter = 2 (12+21) = 66 m