Question

in triangle abc angle a =x degree angke b=3x-2 degree and angle c=y degree. also angle c - angle b=9 degree. find the 3 angles
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Answer 1

Step-by-step explanation:

In triangle ABC, a=x, b=3x-2,c=y

also given,y-3x-2=9

y=9+3x+2

given, x+3x-2+y=180

4x+y=182

4x+9+3x+2=182

x=171/7=24.4

therefore angle a=24.4,. b=71.2,. c=84.2(approximately)