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A sector of a circle of radius 14cm containing an angle 60o is folded to…

A sector of a circle of radius 14cm containing an angle 60o is folded to form a cone. Calculate the radius of the base of the cone.
  • A.
    (5frac{1}{2}cm)
  • B.
    (4frac{2}{3}cm)
  • C.
    (3frac{1}{2}cm)
  • D.
    (2frac{1}{3}cm)
Correct Answer: Option D
Explanation

(r=frac{theta times l}{360^{circ }}\
r=?, theta =60^{circ }), l = radius of the orginal sector of a circle = 14cm
(r=frac{60times 14}{360}=frac{7}{3}=2frac{1}{3}cm)

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