SOLUTION: What has nine angles nine vertices and nine sides ?

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Question 483093: What has nine angles nine vertices and nine sides ?
Answer by MathLover1(20849) About Me  (Show Source):
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Nonagon
1. A nonagon has nine+sides.
2. A nonagon has nine inside angles.
3. All nine sides of a nonagon are of equal length.
4. Each of the interior angles of a nonagon is 140%B0.
5. A nonagon is defined as a regular nine-sided nonagon with nine equal angles.
6. The sum of all the interior angles of a nonagon is 1260°.
7. A nonagon is a two-dimensional figure.
8. Nonagons are studied in the branch of geometry called plane geometry.
9. In plane geometry a nonagon is classified as a type of regular polygon.
10. What is the root of the name of the shape? It comes from Latin words nonus which means "ninth" and gonon which means angle.