Question

A square picture frame will hold a poster with an area of 196 square inches. find the dimensions of the frame.

Answer 1

ok think about this. square is a shape that has all four sides that are the same right? hence, the area of square is x^2 if x is the length of one side.
therefore you can say that x^2 = 196 so x = sqrt(196).

and since square has all 4 sides that are thes ame then youcan say

that the frame must be sqrt(196) * sqrt(196)

Answer 2

tl;dr
14 inches