Question

a metallic right circular cone 20cm high and whose vertical angle is 60° is cut into 2 parts at the at the middle of its height by a plane parallel to it's base. If frustum so obtained is to be drawn into a wire of diameter 1/16 cm, find the length of the wire.​

Answer 1

Answer:

7964.4

Step-by-step explanation:

let given cone is ocd

and ABCD be the required frustum

since frustum is drawn into wire

volume of frustum ABCD=volume of cylindrical wire

Given op = 20cm

and half height of frustum = 10cm= oq = qp

also angle qob=60 degree

we need to find the radius of base and top of the frustum

further you can see in this image