Question

a banner is in the shape of a rectangle. it is 19 feet long and 4 feet 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 \(P = 2\times(\text{length}+\text{width})\).

Step2: Substitute the given values into the formula

Given length \(l = 19\) feet and width \(w = 4\) feet. Then \(P=2\times(19 + 4)\).
First, calculate the sum inside the parentheses: \(19+4=23\).
Then, multiply by 2: \(2\times23 = 46\).

Answer:

46