A sector of radius 10.5 cm with the central angle 120° is folded to f – McqOptions

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1.	A sector of radius 10.5 cm with the central angle 120° is folded to form a cone by joining the two bounding radii of the sector. What is the volume (in cm3)of the cone so formed?
A.	\(\;\frac{{343\sqrt 2 }}{{12}}\pi \)
B.	\(\frac{{343\sqrt 3 }}{6}\pi \)
C.	\(\frac{{343\sqrt 2 }}{6}\pi \)
D.	\(\frac{{343\sqrt 3 }}{{12}}\pi \)
Answer» B. \(\frac{{343\sqrt 3 }}{6}\pi \)

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