Cone filled with water but not fully.

Question

A cone is filled with water but not fully filled. So we keep the cone on its base then vertex to water level height is 8 cm. If we turn the cone upside down then the height between base and water level is 2 cm. Find the full height of cone?

Every given height is perpendicular height.

Answer 1

bh/3 or r^2pi*h/3

Need angle "α".

b8/3=BH/3-β2/3