SOLUTION: A triangle has side lengths 10, 15 and 7. Is the triangle acute, obtuse or right? explain?

Question 888209: A triangle has side lengths 10, 15 and 7. Is the triangle acute, obtuse or right? explain?
Found 2 solutions by richwmiller, Alan3354:
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
obtuse the angle formed at the junction of side 7 and 10 is more than 90 degrees
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
c = longest side
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If c^2 = a^2 + b^2 --> right triangle
If c^2 > a^2 + b^2 --> obtuse
If c^2 < a^2 + b^2 --> acute
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