Question

If a 4 × 16 rectangle has the same area as a square, what is the length of a side of the square?

Answer 1

Area of a rectangle (Ar) = Length (L) x width (w)

Area of a square (As) = side (s) squared

     Ar = As

4 x 16 = s²

    64 = s²

 √64 = √s²

 +/- 8 = s

Since length of a side cannot be negative, disregard the -8

s = 8

Answer: a. 8