wolfiewolffromsketch wolfiewolffromsketch

09-11-2018
Mathematics

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choixongdong choixongdong

09-11-2018

Sum of interior angles in a triangle = 180

So <A + <B + <C = 180

<A = 180 - <B - <C

<A = 180 - 43 - 15

<A = 122

Answer

<A = 122°

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