SOLUTION: Is a triangle a right, acute, or an obtuse triangle if has the measures 11, 11, and 15?

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Question 256162: Is a triangle a right, acute, or an obtuse triangle if has the measures 11, 11, and 15?
Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
Is a triangle a right, acute, or an obtuse triangle if
has the measures 11, 11, and 15?
The only angle that could be obtuse or right in any triangle
is the angle opposite the longest side.

Let a = 15, b= 11, c = 11, then A is the angle opposite the 
longest side 15 






That's less than 90°, so it's acute!  Thus the triangle
is an acute triangle.

Edwin
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