Question

one side of a square room measures 21 ft. how many square yards of carpet are necessary to carpet the room? hint: 1 yd² = 9 ft². enter an exact number. resources watch it ebook

Explanation:

Step1: Calculate area in square - feet

The area of a square is $A = s^2$, where $s$ is the side - length. Given $s = 21$ ft, so $A_{ft}=21^2=441$ ft².

Step2: Convert square - feet to square - yards

Since $1$ yd² = $9$ ft², then $A_{yd}=\frac{441}{9}$.
$A_{yd}=49$ yd²

Answer:

49