Question

#2 Determine whether the triple of numbers can be the sides of a right triangle.
2)9,12,16
Answer choice: a.) yes b>) no

Answer 1

Obviously, if they do form a right-angled triangle, 16 would have to be the hypotenuse, and the Pythagorean theorem would have to hold, so ...

is 16^2 = 9^2 + 12^2 ?