You are on a pleasure cruise through the universe and you crash in the ocean of an unknown planet. Your spaceship floats on the water and its top is 32 feet above the surface of the water. You swim away from the spaceship until you see its top on the horizon. Your laser range meter tells you that your eyes are 2.2 miles away from the top of the space ship. (You are a capable - if reckless and curious - swimmer.) The radius of the planet is miles.
It's a small world, but it's all yours. You figure that the surface of the earth is times as large as the surface of your planet, but still, your planet is plenty big enough for you (if only you can find land somewhere).
Hint: This is like the preceding problem except that the unknown is different.