Question

The number 72 lies between the perfect squares . So, the square root of 72 lies between the numbers , which means the square root of 72 is number.

Answer 1

$\sqrt{72} = \sqrt{18 \times 4 } = 2 \sqrt{18 } = 2 \sqrt{9 \times 2} = 2 \times 3 \sqrt{2} = 6 \sqrt{2}$

Try solving -

$6 \sqrt{2} = \sqrt{6 {}^{2} \times 2} = \sqrt{36 \times 2} = \sqrt{72}$

Therefore answer is verified