Jorge is designing a square poster. The poster has an area of 169 in^2. What is length of each side?
To find the length of each side of the square poster, we need to take the square root of the area.
Area = side x side
169 = side^2
Taking the square root of both sides:
√169 = √(side^2)
13 = side
Therefore, the length of each side of the square poster is 13 inches.