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In triangle​ ABC, the size of angle B is 3 times the size of angle​ A, and the size of angle C is 12degrees less than 6 times the size of angle A.  What are the angles?

 Jan 20, 2020
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angle A

angle B = 3A

angle C = 6A - 12             Added togehter they must equal 180 degrees for a triangle

 

A  + 3A   +  6A-12   = 180       Solve for A     then  B = 3A     and C = 6A-12

 Jan 20, 2020

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