Question

A metallic right circular cone 20cm 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 cm find the length of wire.
16​

Answer 1

Answer:

71.68km

Step-by-step explanation:

Volume of wire=Volume of frustration

=1/3π(r21+r22+r1r2)h

=13[(400⋅3+100⋅3+200⋅3)⋅10/((132)(132))

=71.68km

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