If the area of a square is given to be square units

MATHEMATICS · Single correct · AoPS · Mathematics · Follow the Rules · Follow the Rules

Problem

If the area of a square is given to be

a

square units, the exact length of its side is (a)

2\sqrt{a}

(b)

\dfrac{\sqrt{a}}{2}

(c)

\sqrt{a}

(d)

\sqrt{2a}