Mathematics, 22.03.2020 00:53 matthesml

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.

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Let $B,$ $A,$ and $D$ be three consecutive vertices of a regular $18$-gon. A regular heptagon is con...

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