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A triangle is 180 degrees. One angle is x degrees and the second angle is 77 degrees. What is the expression that shows the measure of the third angle in degrees?

User Rsp
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2 Answers

4 votes
77+x+x=180 I know probably
User Afghanimah
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7 votes
x - 103, 77 is one, x is one, so take 77 from 180, 103, 
User Dwickern
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