SOLUTION: two angles of a triangle measure 15 degree and 85 degree. what is the measure for the third angle?

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Question 235485: two angles of a triangle measure 15 degree and 85 degree. what is the measure for the third angle?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
two angles of a triangle measure 15 degree and 85 degree. what is the measure for the third angle?
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Sum of the angles of a triangle = 180 degrees
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Let the 3rd angle have meansure "x":
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Equation:
x + 15 + 85 = 180
x + 100 = 180
x = 80 degrees.
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Cheers,
Stan H.