alex7598
22.03.2020 •
Mathematics
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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Ответ:
23.34
Step-by-step explanation:
4% of 19.13 = .77
18% of 19.13 = 3.44
3.44+.77 = 4.21
19.13+4.21 = 23.34