lalaahmad2007 lalaahmad2007

12-11-2020
Mathematics

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Will give brainiest answer if you are correct

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noahaceja noahaceja

12-11-2020

Answer:

Well you can either straight up subtract from the total degrees of a triangle using the sum of both of the given angles, which would equal x, or you can make an equation. I’ll do both.

180-78-51=51, x=51

78+51+x=180

129+x=180
x=180-129
x=51

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