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# Let B, A, and D be three consecutive vertices of a regular 18-gon. A regular heptagon is constructed on with a vertex C next to

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Let B, A, and D be three consecutive vertices of a regular 18-gon. A regular heptagon is constructed on $$\overline{AB},$$ with a vertex C next to A. Find $$\angle BCD,$$ in degrees.

Mar 24, 2020

#1
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Angle BCD is 75 degrees.

Mar 24, 2020
#2
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thats incorrect sorry

Guest Mar 24, 2020
#3
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Angle  BCD = 80º

Guest Mar 24, 2020