Spherical iceberg?

[Physics is Phun]

This isn't actually a homework problem but I figured it could go here anyway. Lets say there is a spherical iceberg floating in the ocean it has a radius of say 10m. If 9/10 of the volume of the iceberg is submerged, how far above the surface of the water does the iceberg stick out? How would I go about finding this?

[Doc Al]

You can find the volume of a partially filled sphere using a bit of calculus.