Question

Elias completely covered a square canvas using 77.8 in.² of fabric without any overlap.

Which measurement is closest to the side length of this canvas in inches?


8 in.

9 in.

19 in.

39 in.

Answer 1

the amount of fabric on the square = the area of the square

area of a square = s^2 = 77.8 inch^2, where s is the side length

therefore, to find the side length, simply take the square root of both sides