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OpenStudy (anonymous):

what is the 3rd angle of a triangle if the 1st two are 18 and 100 degrees

OpenStudy (anonymous):

Angles of a triangle always add up to 180. So what must the third angle be to get up to 180?

OpenStudy (anonymous):

62?

OpenStudy (anonymous):

Yes. Nice.

OpenStudy (anonymous):

thankkks

OpenStudy (phi):

you can check by adding up 62+18+100. If 62 is correct, you will get 180 the fast way to find the answer is 180- (18+100)

OpenStudy (anonymous):

thankyou

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