Question

a square patio has an area of 121 square yards. what is the length of this patio?

Answer 1

Formula for Area of a Square:

A = a^2

Plug in what we know:

121 = a^2

To solve for 'a', we have to find the square root of both sides:

a = 11

Answer 2

A = a²
121 = a²
√121 = a
 11 = a