SOLUTION: two angles of a triangle are 40 degrees and 20 degrees what is the measurement of the third triangle?

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Question 880347: two angles of a triangle are 40 degrees and 20 degrees what is the measurement of the third triangle?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
40 + 20 + 3rd angle = 180 degrees