Question

a picture is in the shape of a rectangle. it is 8 inches long and 5 inches wide. what is its perimeter?

Explanation:

Step1: Recall the formula for the perimeter of a rectangle

The formula for the perimeter \(P\) of a rectangle is \(P = 2\times(\text{length}+\text{width})\), or \(P=2l + 2w\) where \(l\) is the length and \(w\) is the width.

Step2: Substitute the given values

Given \(l = 8\) inches and \(w = 5\) inches. Using \(P=2\times(l + w)\), we substitute: \(P=2\times(8 + 5)\).
First, calculate the sum inside the parentheses: \(8+5=13\).
Then, multiply by 2: \(P = 2\times13\).

Step3: Calculate the final result

\(2\times13 = 26\).

Answer:

26