Question

A rectangle is three times as long as it is wide if it's perimeter is 56cm.find the width of the rectangle

Answer 1

I'm answering the question that u have posted in comment.

Explanation:

let the age of her daughter be x

now,

3x-6=36

3x=36-6

x=30/3

x=10

so, the age of her daughter is 10years.

hope it helps.

Answer 2

the length is 3W cm. THerefore, the perimeter is 2*(3W + W) = 8W = 56 So W = 7 cm.