Yes, 102 isn't a square number (1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144) so the square root of 102 will keept going forever and is irrational.
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The square root of (any number that isn't a perfect square) is irrational.
No, it is not.
The square root of 10.2 is 3.19374388
Well, isn't that just a happy little question! The square root of 104 is between 10 and 11, closer to 10. So, the nearest integer to the square root of 104 is 10. It's like a little mathematical journey to find the perfect whole number to represent the square root of 104.
Use Pythagoras' theorem: 102-(5 times the square root of 3)2 = 25 and the square root of this is 5 Answer: 5 cm