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OpenStudy (anonymous):
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? A. 180 + x + 77 B. 180 - x + 77 C. 180 + x - 77 D. 180 - x - 77
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OpenStudy (kc_kennylau):
What's your answer?
OpenStudy (anonymous):
i though it be B
OpenStudy (kc_kennylau):
Nope :/ Try again! :)
OpenStudy (kc_kennylau):
You may let the third angle be y. What do the three angles add up to?
OpenStudy (anonymous):
i ended up with b or c ?
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OpenStudy (kc_kennylau):
Nope, maybe follow my instructions?
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