Question

A square picture frame occupies an area of 112 ft2 . What is the length of each side of the picture in simplified radical form? Show your work

Answer 1

It would be 28 because you have to divide 112 into 4, because the picture is a square(most likely) so its sides are all equal

Answer 2

A = a^2
112 = a^2
sqrt 112 = a
sqrt 16 * sqrt 7 = a
4 sqrt 7 = a

so 4 sqrt 7 is the length of each side