Question

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

a. 8
b. 6
c. 10
d. 12

Answer 1

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Explanation:

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Answer 2

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