Expressed as a surd, sqrt(90) is equal to 3 sqrt(10).
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sqrt 6 = sqrt 2 x sqrt 3
1
square root of 90
Yes, that is correct. It is one of the basic properties of surds, and is used in many identities and some equations, to simplify and calulate and prove.
A right angle is 90 degrees. The square root of a right angle would be the square root of 90, which is 9.486.