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[[File:Regular octagon.svg|right|150px]]
'''Ocogon''' sen figura har oco comen, oco gono ji oco tyan.<ref name="cm">[https://www.cuemath.com/geometry/octagon/ "Octagon - Definition, Formula, Examples | Octagon Shape"]. ''Cuemath''. Visita fe 26 de mesi 3, 2022.</ref>
== Meter ==
=== Weylungoje ===
Weylungoje de pimpan ocogan har comenli lungoje ''a'' sen:
:<math>\text{Weylungoje} = 8a.</math><ref name="cm" />
=== Peryaje ===
Peryaje de pimpan ocogon har comenli lungoje ''a'' sen:
:<math>\text{Peryaje} = 2a^2(1 + \sqrt{2})
=== Inli gono ===
[[File:Regular polygon 8 annotated.svg|right|150px]]
Inli gono de pimpan ocogon maxuscu cel 1080°:
:<math>
(n - 2) \times 180^\circ \\
= (8 - 2) \times 180^\circ \\
= 6 \times 180^\circ \\
= 1080^\circ,
</math>
ji moyun sen 135°:
:<math>
\begin{align}
\text{Inli gono} & = \frac{(n - 2) \times 180^\circ}{n} \\
& = \frac{(8 - 2) \times 180^\circ}{8} \\
& = \frac{6 \times 180^\circ}{8} \\
& = \frac{1080^\circ}{8} \\
& = 135^\circ.
\end{align}
</math><ref>[https://www.vedantu.com/maths/octagon "Octagon"]. ''Vedantu''. Visita fe 26 de mesi 3, 2022.</ref>
=== Exli gono ===
Moy exli gono de ocogon sen 45° ji maxuscu cel 360°:
:<math>
45^\circ \times n \\
= 45^\circ \times 8 \\
= 360^\circ.
</math><ref name="cm" />
== Gonolinku ==
[[File:7-simplex graph.svg|right|150px]]
Ocogon hare 20 gonolinku:
:<math>
\begin{align}
\text{Gonolinku} & = \frac{n(n - 3)}{2} \\
& = \frac{8(8 - 3)}{2} \\
& = \frac{8(5)}{2} \\
& = \frac{40}{2} \\
& = 20,
\end{align}
</math>
ji fe pimpan ocogon, lungoje de moy gonolinku har comenli lungoje ''a'' sen:
:<math>\text{Lungoje} = a\sqrt{4 + 2\sqrt{2}}.</math><ref>[https://byjus.com/maths/octagon/ "Octagon Shape - Definition, Properties, Formula, Examples, Sides and angles"]. ''BYJU'S''. Visita fe 26 de mesi 3, 2022.</ref>
== Misal ==
<gallery>
Stop sign dark red.svg|Usali estoixara
8-folding.svg|
</gallery>
[[File:Regular Octagon Inscribed in a Circle.gif|frame|none|Kostrui de ocogon in dayra yon jinjibyen ji dayratul]]
== Ofatalari ==
<references />
[[Category:Figura]]
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