SOLUTION: A triangle's sides are lengths of 18 cm, 80 cm and 81 cm. Classfiy it as acute, obtuse or right. (obtuse) right acute My answer is obtuse, which is why I put parenthesis around

Algebra ->  Test -> SOLUTION: A triangle's sides are lengths of 18 cm, 80 cm and 81 cm. Classfiy it as acute, obtuse or right. (obtuse) right acute My answer is obtuse, which is why I put parenthesis around      Log On


   



Question 1115641: A triangle's sides are lengths of 18 cm, 80 cm and 81 cm. Classfiy it as acute, obtuse or right.
(obtuse)
right
acute
My answer is obtuse, which is why I put parenthesis around obtuse.
I was circling obtuse.

Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
The 81 cm length side is the longest. What happens if you try to put the values into Pythagorean Formula? What happens to Order of the two expressions?

18%5E2%2B80%5E2 versus 81%5E2

What does this tell you?