Question

1. what is the perimeter of a rectangle with length 20 in. and width 12 in. ?

Explanation:

Step1: Recall perimeter formula

The perimeter formula for a rectangle is $P = 2(l + w)$, where $l$ is length and $w$ is width.

Step2: Substitute values

Given $l = 20$ in. and $w = 12$ in., substitute into the formula: $P=2(20 + 12)$.

Step3: Calculate sum inside parentheses

First, calculate $20+12 = 32$. So $P = 2\times32$.

Step4: Multiply

$2\times32=64$ in.

Answer:

64 in.