a solid metallic right circular cone 20 cm high with vertical angle 60 is cut into two parts at the middle point of its height by a plane parallel to the base. its frustum, so obtained be drawn into a wire if diameter 1/16 cm, find the length of the wire .



Radius (r1) of upper end of frustum = 

Radius (r2) of lower end of container = 

Height (h) of container = 10 cm

Volume of frustum =

Radius (r) of wire = 


Let the length of wire =l.

Volume of wire = Area of cross-section × Length

= (πr2) (l)


Volume of frustum = Volume of wire


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