Question

Help me out plsssss thankssss

Answer 1

No, It doesn't

Explanation:

Use the Pythagorean Theorem to check for a right angle

a^2=b^2+c^2

81^2=80^2+13^2

Solve

6561≠6569

Answer 2

yes

Explanation:

because the 2 shorter sides need to add up to more than the 3rd side. and they do.