Question

If the ratio of the length to tje breadthof a rectanglebe 5:3 and its perimeter is 144m , find the length of the rectangle

Answer 1

Hello!!!


Here's the Answer :

Let the length and breadth of the rectangle be 5x and 3x respectively.

(Given)
Perimeter = 144 metres

=> Perimeter of the Rectangle = 144 m

2 ( l + b ) = 144

2 ( 5x + 3x ) = 144

2 × 8x = 144

16x = 144

x = $\frac {144}{16}$

x = 9


=> Length
5x
5 × 9
45


So, the length of rectangle is 45 metres.


Hope It Helps!