How do you solve. please help!

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asked Sep 13, 2018 209k views

2 Answers

ShloEmi · Answer 1 · 2018-09-16T01:58:21+0000

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!

How do you solve. please help!

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