Question

if ratio of sides of a rectangle is 5:4 if perimeter of rectangle is 180 ° cm then find area of rectangle​

Answer 1

Step-by-step explanation:

Sides of the rectangle are in the ratio of 4:5

Let the length l=5x

and the breadth b=4x

Now, perimeter =2(l+b)=90cm

2(5x+4x)=90

2(9x)=90

18x=90

x=5

Therefore, Length l=5x=25cm

and the breadth b=4x=20cm