Question 610167
The arc PQ forms the circumference of the circlular base of the cone.
The circumference (C) of a circle is given by:
{{{C = (pi)D}}}  Where D is the diameter and {{{C = 10}}}cm. Solve this for D:
{{{10 = (pi)D}}} Solve for D.
{{{D = 10/pi}}}