Question

Find the length of rectangle if its perimeter is =200m and breadth =60m​

Answer 1

Perimeter of rectangle = 2(l + b)

So,

=> 200 = 2×(l + 60)

=> 200 = 2l + 120

=> 200 - 120 = 2l

=> 80 = 2l

=> 80/2 = l

=> 40 = l.

Length of rectangle is 40 m.

Answer 2

the perimeter of rectangle=200 m

let lenght be x m

200=2(x+60)

200/2=x+60

100=x+60

100-60=x

x=40 m

therefore the length of the rectangle is 40 m.