Question

Does a triangle with side lengths 5, 5 and 5root2 form a right triangle?

Answer 1

If it is a right triangle, then 5^2+5^2 = (5*sqrt(2))^2
25 + 25 = (5*1.414...)^2 =
50 = (7.0710678119) ^2
and 7.0710678119^2 = 50 so it is a right triangle.
To be specific, it is an isosceles right triangle.