Question

1. what is the side length, s, of the square? a = 81 m²

Explanation:

Step1: Recall the area formula for a square

The area formula for a square is \(A = s^{2}\), where \(s\) is the side - length. Given \(A = 81\space m^{2}\), we have the equation \(s^{2}=81\).

Step2: Solve for \(s\)

Take the square root of both sides of the equation \(s^{2}=81\). Since \(s>0\) (side - length cannot be negative), \(s=\sqrt{81}\).

Answer:

\(9\space m\)