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  2. Icosagon - Wikipedia

    en.wikipedia.org/wiki/Icosagon

    Download as PDF; Printable version; ... an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon's interior angles is 3240 degrees. ... (4 21) 600-cell:

  3. Icositetragon - Wikipedia

    en.wikipedia.org/wiki/Icositetragon

    Download as PDF; Printable version; ... or 24-gon is a twenty-four-sided polygon. The sum of any icositetragon's interior angles is 3960 degrees. ... One interior ...

  4. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    A formula for computing the trigonometric identities for the one-third angle exists, but it requires finding the zeroes of the cubic equation 4x 3 − 3x + d = 0, where is the value of the cosine function at the one-third angle and d is the known value of the cosine function at the full angle.

  5. Polygon - Wikipedia

    en.wikipedia.org/wiki/Polygon

    Exterior angle – The exterior angle is the supplementary angle to the interior angle. Tracing around a convex n -gon, the angle "turned" at a corner is the exterior or external angle. Tracing all the way around the polygon makes one full turn , so the sum of the exterior angles must be 360°.

  6. List of polygons - Wikipedia

    en.wikipedia.org/wiki/List_of_polygons

    A pentagon is a five-sided polygon. A regular pentagon has 5 equal edges and 5 equal angles. In geometry, a polygon is traditionally a plane figure that is bounded by a finite chain of straight line segments closing in a loop to form a closed chain.

  7. Download, install, or uninstall AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-downloading...

    • 512 MB free hard disk space Internet connection. Download Desktop Gold. If you're an AOL Advantage Plan member.

  8. Venezuela's opposition decry arrests ahead of anti-Maduro ...

    www.aol.com/news/venezuelas-opposition-decry...

    "Venezuela will be free, I can't guarantee the day or the time. It might be before, during or after January 10, but it will happen." Gonzalez and Machado have repeatedly urged the police and ...

  9. Internal and external angles - Wikipedia

    en.wikipedia.org/wiki/Internal_and_external_angles

    A polygon has exactly one internal angle per vertex. If every internal angle of a simple polygon is less than a straight angle (π radians or 180°), then the polygon is called convex. In contrast, an external angle (also called a turning angle or exterior angle) is an angle formed by one side of a simple polygon and a line extended from an ...

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