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How do you solve. please help!
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How do you solve. please help!

How do you solve. please help!-example-1
User TheRealKingK
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2 Answers

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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!
User ShloEmi
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B 51 degrees is the right answer I think
User LinuxDisciple
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