Difference between revisions of "Decagon"
Williamhu888 (talk | contribs) (Created page with 'A '''decagon''' is a polygon with ten sides. ==See Also== * Polygon * Geometry Category:Geometry {{stub}}') |
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| − | A '''decagon''' is a polygon with ten sides. | + | A '''decagon''' is a polygon with ten sides. A decagon has interior angles of measure <math>144^{\circ}</math>, and exterior angles of measure <math>36^{\circ}</math>. The area of a regular decagon with side length <math>a</math> is <math>\frac{5}{2} a^{2} \sqrt{5+2\sqrt{5}}</math> |
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==See Also== | ==See Also== | ||
* [[Polygon]] | * [[Polygon]] | ||
Latest revision as of 13:09, 5 June 2024
A decagon is a polygon with ten sides. A decagon has interior angles of measure 
, and exterior angles of measure 
. The area of a regular decagon with side length 
is 
See Also
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