# SOLUTION: Two angles of a triangle measure 21 degrees and 86 degrees. What is the measure of the third angle? Could you please show how you got it. Thank you

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 Click here to see ALL problems on Equations Question 148430: Two angles of a triangle measure 21 degrees and 86 degrees. What is the measure of the third angle? Could you please show how you got it. Thank youAnswer by stanbon(57222)   (Show Source): You can put this solution on YOUR website!Two angles of a triangle measure 21 degrees and 86 degrees. What is the measure of the third angle? -------------- The three angles always add up to 180 degrees. Let the 3rd angle have measure "x". EQUATION: x + 21 + 86 = 180 x + 107 = 180 x = 73 degrees ================ Cheers, Stan H.