Find the square root of 42.25.

Correct option is A

Given:

The square root of 42.25

Solution:

42.25 as a fraction:

​$$42.25 = \frac{4225}{100}$$ 

​$$\sqrt{42.25} = \sqrt{\frac{4225}{100}} = \frac{\sqrt{4225}}{\sqrt{100}}$$ 

​$$\sqrt{42.25} = \frac{65}{10}$$

$$\sqrt{42.25} = 6.5$$​ ​

The square root of 42.25 is 6.5