Question

4. The rectangular playground in Tim's school is three times as long as it is wide. The area of the playground is 75 square meters. What is the perimeter of the playground?

Answer 1

let the breadth be x
So,length is 3x
Then,
3x*x=75
=3x^2=75
=x^2=75/3
=x^2=25
=x=√25
=x=5
Breadth=5m
Length=15m
Perimeter=2(15+5)
=2*20
=40m