A decagon is a ten-sided polygon or 10-gon, which means that it has ten equal side. Calculate its perimeter and area.

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A decagon is a ten-sided polygon or 10-gon, which means that it has ten equal side. Calculate its perimeter and area.

`Decagon Formulas`

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A decagon is a ten-sided polygon or 10-gon, which means that it has ten equal side. Calculate its perimeter and area.

$a$, Symbol for Side;

$p$, Symbol for Perimeter;

$A$, Symbol for Area;

$10a$

$\frac{5}{2}{a}^{2}\sqrt{5+2\sqrt{5}}$

^{Figure - 17.1} https://www.tutorvista.com/content/math/area-of-a-decagon/