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Uhly pravidelného n-uholníka
Aké veľké budú jednotlivé uhly daného pravidelného n-uholníka?
\( \normalsize n=3 \)
\( \large\alpha=\frac{\left(n-2\right)\cdot180\degree}{n}=\frac{\left(3-2\right)\cdot180\degree}{3}=\frac{1\cdot180\degree}{3}=\frac{180\degree}{3}=60\degree \)
\( \large\alpha=\frac{\left(n-2\right)\cdot180\degree}{n}=\frac{\left(3-3\right)\cdot180\degree}{3}=\frac{0\cdot180\degree}{3}=0\degree \)
\( \large\alpha=\frac{\left(n-2\right)\cdot180\degree}{n}=\frac{\left(3-1\right)\cdot180\degree}{3}=\frac{2\cdot180\degree}{3}=\frac{360\degree}{3}=120\degree \)
\( \large\alpha=\frac{\left(n-2\right)\cdot180\degree}{n}=\frac{\left(3-4\right)\cdot180\degree}{3}=\frac{-1\cdot180\degree}{3}=-60\degree \)