Question

The length of one side of the poster is _in

Answer 1

Note that the area of a square is: A = s² (s being side). Also note that all the sides of the square are congruent and have the same measurement.

Plug in 37 for A

37 = s²

Isolate the s. Note the equal sign. What you do to one side, you do to the other. Root both sides

√37 = √s²

s = √37

Change the root to a decimal

s = √37 = ~6.1 (rounded to the nearest tenth)

6.1 in is your answer

hope this helps