Calculation for 40-foot by 30-foot prolate ellipsoid

An example of a prolate ellipsoid—40-feet in diameter by 30-feet tall. A second floor level at 10-feet is shown. By running the calculations twice with a 10-foot level and 20-foot level, we find a dome shape with a maximum potential floor area of over 3,000 square feet. Click for live calculator version of this design.