SOLUTION: One angle of a triangle measures 12 degrees. The second angle's measurement is five time the third. What is the measure of the third angle?

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Question 128174: One angle of a triangle measures 12 degrees. The second angle's measurement is five time the third. What is the measure of the third angle?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
12+x+5x=90
6x=90-12
6x=78
x=13 answer for the third angle.