When working a bunch of these, it is useful to program your calculator or a spreadsheet to do the number crunching. Here, I've defined Y₁(X) to give both the area and volume of a sphere of radius X.
1. Area = 113.097 cm^2
.. Volume = 113.097 cm^3
2. Area = 50.265 in^2
.. Volume = 33.510 in^3
3. Area = 314.159 cm^2
.. Volume = 523.599 cm^3
4. Area = 201.062 in^2
.. Volume = 268.083 in^3
5. Area = 31415.93 cm^2
6. Volume = 7238.23 in^3
