What is the square root of 74

Question

how to find the value of x in a triangle

Answer 1

By hand:

 

8^2=64 and 9^2=81, therefore the square root of 74 (√74) is between 8 and 9. 

 

The ratio of the distance between 74-64 and 81-64 is 0.59 round to 0.6.

 

(74-64)/(81-64)= 10/17=0.6.

 

The answer is 8.6.

Answer 2

√74 is as simple as it can get.  It factors to 37·2, both of which are prime numbers and neither of which is a perfect square.  If you plug it into your calculator √74 ≈ 8.6.