3D Geometry Questions

A triangular prism has 9 edges. How many vertices does it have?

If the curved surface area of a right circular cone is 10010 sq cm and its slant height is 91 cm, find its total surface area.

How many balls of radius 3cm can be made by melting a bigger ball of diameter 48cm?

How many spherical balls each of $2\text{cm}$ radius can be made out of a solid metallic cube of edge $44\text{cm}$? (Take $\pi =\frac{22}{7}$)

If a cone of radius 10.5cm and height 12cm is melted and constructed into a cylinder of the same radius, what will be the height of this cylinder?