Question

Guess the square root of 36.

• A. 4
• B. 5
• C. 6
• D. 8

Answer 1

The correct option is C 6

36 = 6 $\times$ 6 = 6${}^2$
Square root of 36 = $\sqrt{36}={36}^{\frac{1}{2}}=(6\times 6{)}^{\frac{1}{2}}=(6^2{)}^{\frac{1}{2}}=6^{\left(2\times \frac{1}{2}\right)}=6^1$
Square root of a number is always positive. Therefore, square root of 36 is 6.