Question

The ratio of length and breadth of a rectangle is 7 : 5.The prerimeter of the rectangle is 72 m. What is the area of the rectangle?

Answer 1

Answer:

315sq.cm

Step-by-step explanation:

let length be 7x

let breadth be 5x

perimeter of rectangle=

2(l+b)

therefore,72=2(7x+5x)

therefore,72=2*12x

therefore,72=24x

therefore,x=72/24

therefore,x=3

length of rectangle=7x=7*3=21

breadth of rectangle=5x=5*3=15

area of rectangle=

l*b

=21*15

=315sq.cm

hope it helps you bro