1.

A right –angled cone (with base radius 5 cm and height 12 cm), as shown in the figure below, is rolled on the ground keeping the point P fixed until the point Q (at the base of the cone, as shown touches the ground again.By what angle (in radians) about P does the cone travel?

A. \(\frac{{5\pi }}{{12}}\)
B. \(\frac{{5\pi }}{{24}}\)
C. \(\frac{{24\pi }}{5}\)
D. \(\frac{{10\pi }}{{13}}\)
Answer» E.


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