Question

the area of a square made out of a length of yarn measures 225 square inches. how long is the yarn ?
a. 225.00 inches
b. 60.00 inches
c. 56.25inches
d. 15.00inches

please explain

Answer 1

\[A = s^{2}\]
\[225 = s^{2}\]
\[15 = s\]
\[P = 4s\]
\[P = 4(15)\]
\[P = 60\]

Answer 2

Basically, you find the length of a side by finding the square root. Then, once you see that the side is 15 inches, you can just multiply it by 4 because a square has 4 equal sides. THerefore, the perimeter is 60 inches.