Question

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

Answer 1

Answer:

45 m

Step-by-step explanation:

Question:

if the ratio of the length to the breadth of a rectangle be 5:3 and its perimeter is 144m find the length of the rectangle

Solution:

let the length be 5X

let the breadth be 3X

perimeter = 2(length + breadth)

= 2(5X + 3X)

= 2 × 8X

= 16X

the perimeter is 16X or 144m

So,

16X = 144m

X = 144/16m

X = 9m

length = 5X = 5 × 9m = 45m

Hope it's helpful for you!