Question

The sides of the rectangle are in the ratio 5:4 and it's perimeter is 90cm . find it's length and breadth.

Answer 1

take sides as 5x and 4x as the perimeter is 2 (l+b)

2 (5x+4x)=90

9X=90/2

9X=45

X=5

L=5×5=25

B=4×5=20