If the side of a regular hexagon is 10 cm then the radius of its circumcircle is?

10 cms.

Step-by-step explanation:

The circumcircle passes through each vertex of the hexagon so the radius is  equal to one of the  2 equal sides of an isosceles triangle with base = 10 cm and vertex = 60 degrees.

So considering this triangle  the base angles are ( 180 - 60) / 2 = 60 degrees.  So we have an equilateral triangle with each side = 10 cm.

Therefore the  radius is 10 cm. long.

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.