Question

The area of a square tile is 324 square units. What is the length of each side of the tile?

• A. 17 units
• B. 18 units
• C. 16 units
• D. 22 units

Answer 1

The correct option is B

18 units

The area of a square with side $a=a^2$
$\therefore a^2=324a=\sqrt{3}24=18units$
$a=\sqrt[2]{22\times 2\times 3\times 3\times 3\times 3}$
$=2\times 3\times 3$
$=18units$