Question

which equation represents the area of a square with a side length of 9?
a. a = 2 × 9
b. a = √9
c. a = 9²
d. a = 9 + 9

Explanation:

Step1: Recall the formula for the area of a square

The area \(A\) of a square is given by \(A = s^{2}\), where \(s\) is the side - length of the square.

Step2: Substitute the side - length \(s = 9\) into the formula

When \(s = 9\), we have \(A=9^{2}\).

Answer:

C. \(A = 9^{2}\)