The apothem of a regular polygon is the distance from the center to the midpoint of one of its sides.
Apothem of a Square
The apothem of a square is equal to half of the length of one side.
Calculate the apothem of a square with a side of 6 cm.
a = 6/2 = 3 cm
Apothem of a Regular Polygon
By applying the Pythagorean theorem for one of the triangles, we obtain:
Calculate the apothem of a regular pentagon with a side of 6 cm.
Apothem of a Regular Hexagon
The radius of a regular hexagon is equal to the side.
Apply the Pythagorean theorem for the triangle:
Find the apothem of a regular hexagon inscribed in a circle with a radius of 4 cm.