SOLUTION: Could the folling three measure be side lengths of a triangle? If not, why not? If so, determine whether it would be a right triangle or not. 7, 9, 4 sqrt (2)

Algebra ->  Triangles -> SOLUTION: Could the folling three measure be side lengths of a triangle? If not, why not? If so, determine whether it would be a right triangle or not. 7, 9, 4 sqrt (2)      Log On


   



Question 447046: Could the folling three measure be side lengths of a triangle? If not, why not? If so, determine whether it would be a right triangle or not.
7, 9, 4 sqrt (2)

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1st check to see if it's a right triangle. If it is, then the first question is answered.
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9 is the longest side
Does 9^2 = 7^2 + (4sqrt(2))^2 ?
81 = 49 + 32 ?
It's equal, so it's a right triangle.