MathDB
Wire around Poles

Source:

February 11, 2009
trigonometry

Problem Statement

A 6 6-inch and 18 18-inch diameter pole are placed together and bound together with wire. The length of the shortest wire that will go around them is: (A)\ 12\sqrt{3}\plus{}16\pi \qquad (B)\ 12\sqrt{3}\plus{}7\pi \qquad (C)\ 12\sqrt{3}\plus{}14\pi \\ (D)\ 12\plus{}15\pi \qquad (E)\ 24\pi