Question

Is 13,82,90 a right triangle

Answer 1

it's not a right triangle (it's an obtuse triangle)

Explanation:

If three numbers a, b and c verify the relation a^2+b^2=c^2 they are said to form a Pythagorean triple, therefore the triangle is right-angled.

verify

13^2 + 82^2 = 90^2

169 + 6724 = 8100

6893 = 8100

it's not a right triangle (it's an obtuse triangle)