Apothem!
"Heptagon" is the name of a 7-sided polygon.
If measured on the inside of the polygon, the it is an interior angle.
A five-sided polygon is called a "pentagon."
heptagon
The name for this polygon is a nonagon,
The name of a 7 sided polygon is Heptagon.
A hendecagon or an undecagon is the name of a polygon which has eleven sides.
Apothem!
"Heptagon" is the name of a 7-sided polygon.
If measured on the inside of the polygon, the it is an interior angle.
A five-sided polygon is called a "pentagon."
pentachiliagon
Hexagon
The answer is an octagon.
An octagon.
heptagon