Alfa, beta, gama

In the ABC triangle, is the size of the internal angle BETA 8 degrees larger than the size of the internal angle ALFA and the size of the internal angle GAMA is twice the size of the angle BETA? Determine the size of the interior angles of the triangle ABC.

Correct answer:

a =  39 °
b =  47 °
c =  94 °

Step-by-step explanation:

b=8+a c=2 b a+b+c=180  ab=8 2bc=0 a+b+c=180  Row3Row1Row3 ab=8 2bc=0 2b+c=188  Row3Row2Row3 ab=8 2bc=0 2c=188  c=2188=94 b=20+c=20+94=47 a=8+b=8+47=39=39  a=39 b=47 c=94

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