Question

1. in a rectangle, the length is five times the width. write and simplify the expression of the perimeter. perimeter: ____

Explanation:

Step1: Define variables

Let width be $w$, then length $l = 5w$.

Step2: Use perimeter formula

Perimeter $P=2(l + w)=2(5w+w)$.

Step3: Simplify the expression

$P = 2\times6w=12w$.

Answer:

$12w$