shadowstudy
shadowstudy
10-05-2017
Mathematics
contestada
How do you solve. please help!
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khadizaalam101
khadizaalam101
10-05-2017
B 51 degrees is the right answer I think
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Аноним
Аноним
10-05-2017
Okay, we know that the triangle has 180°.The interior angel of the right side is 180°-138°=42°, and the left side is 180°-129°=51°. Both add up together to get 93. Then, find angle A which is 180-93=87° which is A. Hope it help!
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