Answer:
6.3245
Step-by-step explanation:
The square root of any number is the number when multiplied with itself results in the given number.
Square root of 40 is expressed as √40 = 6.3245.
Square root of 40 in radical form = √40 = √(2 × 2 × 2 × 5) = 2√10.
Therefore, 40 is not a perfect square.
