The volume of a cone with equal base and equal height is one third of that of a cylinder.

So the answer is 0.6cm.

First find the bottom diameter 18.84÷3. 14=6.

The radius is 3.

The volume of the cone is 3× 3× 3.14× 20 ÷ 3 =188.4.

Finally,188.4÷ (10×10× 3.14) = 0.6.