Question 554661
we were given a problem that gave us three sides of a triangle: 2, 8, and the square root of 65. is this triangle obtuse or acute?
---------
sqrt(65) is the longest side.
If the square of the longest side is > than the sum of the squares of the other 2, it's obtuse.
If it's less, it's acute.
If it's equal, it's a right triangle.
-----
65 < (2^2 + 8^2) --> acute