Posted by: hawguji66 October 30, 2004
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One more:
The radius of the base of a right circular cone is 1. The vertex of the cone is V, and P is a point on the circumference of the base. The length of PV is 6 and the midpoint PV is M. A piece of string is attached to M and wound tightly twice round the cone finishing at P. What is the length of the string?