Question

if the ratio of length to a breadth of a rectangle be 5:3 and it's perimeter is 144m . find the length of a rectangle ​

Answer 1

Answer:

45

Step-by-step explanation:

let the length be 5x

let the breadth be 3x

perimeter of rectangle = 2 ( l + b)

144 = 2 ( 5x + 3x )

144/2 = 8x

72 = 8x

72/8 = x

9 = x

length = 5x = 5 × 9 = 45