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Need help with this please

Need help with this please-example-1

1 Answer

4 votes

Answer:

angle C=93 degrees

Explanation:

arc AB=78 degrees

arc ABC=2x105 degrees=210 degrees

arc AD=360-210-42=108 degrees

arc=DAB=78+108=186 degrees

angle C=1/2(186)=93 degrees

User Jialin Wang
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