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PLEASE HELP ME WITH THIS!

PLEASE HELP ME WITH THIS!-example-1
User Maltysen
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1 Answer

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Answer:

FC = 138 degrees

Explanation:

DG is equivalent to GC

FAD and FBC are equivalent arc angles

Therefore, if DG is 42 degrees, GC is also 42 degrees which makes DGC 84 degrees

Since a circle is 360 degrees, and FAD + FBC + DGC makes up a whole circle, we can say:
FAD + FBC + DGC = 360, since DGC is 84 degrees, and FAD = FBC

2FAD + 84 = 360

solve for FAD

FAD = 138 degrees, since FAD is equal to FBC, FBC is also equal to 138 degrees, where FBC is also FC <- just that they exclude the B in the notation

User Kevoroid
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