Help me out pls thanks

yes

Step-by-step explanation:

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

No, It doesn't

Step-by-step 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

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square