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A solid metallic right circular cone 20 ...

A solid metallic right circular cone 20 cm high and whose vertical angle is 60°, is cut into two parts at the middle of its height by a plane parallel to its base. If the frustum so obtained be drawn into a wire of diameter 1/12 cm, find the length of the wire.

A

2440 m

B

2560 m

C

4480 m

D

3280 m

Text Solution

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The correct Answer is:
C
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