The diagonal of a square is 14 cm. What is the length of its side?

The correct answer is Option (1) → \(7\sqrt{2}\) cm

The diagonal of a square is the hypotenuse of a right triangle with two sides of the square as legs, so diagonal \(=\) side \(\times\sqrt{2}\).

• Side \(\displaystyle =\frac{14}{\sqrt{2}}=\frac{14\sqrt{2}}{2}=7\sqrt{2}\) cm