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Question

Can somebody show I how to find the angle for FB,FG, angle GB,GF, angle GB,GC, angle GC,GH, angle CB,CG, angle CG,CH and angle HC,HG?

Answer 1

Not sure what you mean, since angles are customarily labeled with 3 points. If by the angle for FB,FG you mean the angle that FB makes with FG, then you know that
tan(AFB) = 12/15
tan(AFD) = 36/15
BFG = AFD-AFB

See what you can do with the others.