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A metallic right circular cone 20 cm hig...

A metallic right circular cone 20 cm high and whose vertical angle is `60o`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/(16)c m` find the le

Text Solution

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Volume of wire=Volume of frustration
=`1/3pi(r_1^2+r_2^2+r_1r_2)h`
=`1/3(400*3+100*3+200*3)/((1/32)(1/32))*10`
=71.68km
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