A heptagon is a polygon with seven sides. The sum of the interior angles of a heptagon is $900^{\circ}.$ Therefore, the measure on an interior angle in a regular heptagon is $\frac{900}7^{\circ}.$ A heptagon will have 14 diagnols and can be split into 5 triangles.

See Also

This article is a stub. Help us out by expanding it.