Question

1. paula completely covered a square wall using 87.5 ft² of wallpaper without any overlap. which measurement is closest to the side length of this wall in feet?

a 22 ft
b 44 ft
c 9 ft
d 7 ft

Explanation:

Step1: Recall square area formula

The area $A$ of a square is $A = s^2$, where $s$ is the side length.

Step2: Solve for side length

Rearrange to $s = \sqrt{A}$. Substitute $A = 87.5$:
$s = \sqrt{87.5} \approx 9.35$

Step3: Match to closest option

9.35 ft is closest to 9 ft.

Answer:

C 9 ft