1. The area of a zone of a spherical segment is 1/4 that of the sphere. What is the ratio of the radius to the altitude of the spherical zone?
2.If a sphere has an inside diameter of 15 m. and it could safely be filled with gas 75% of its volume, compute for the volume of the gas that could safely be contained in the sphere.
3. The volume of the spherical segment with two bases is equal to 159 pi. If the radii of the bases are 4 m, and 5 m. respectively, find the value of the altitude h.