the point that is equidistant from all vertices of a polygon.
A regular polygon
A regular polygon
the center
Inscribed Polygon
an Apothem
It is a regular polygon as for example an equilateral triangle
It is a regular pentagon that has 5 equal sides and 5 vertices.
If it is a polygon with an even number (>2) of vertices, join any two pairs of opposite vertices. These lines will meet in the centre. If it is a polygon with an odd number (>1) of vertices, join any two vertices to the midpoints of the opposite sides. These lines will meet in the centre.
It has 20 vertices or angles. * * * * * No! A dodecagon has 12 vertices. A polygon with 20 vertices is an icosagon.
A Apothem
Apothem