How do I solve this in excel

40 6.5 12.9 25.9 8. In the 1950s, a team at Los Alamos National Laboratories built several devices called "Perhapsatrons," thinking that PERHAPS they might be able to create controllable nuclear fusion. After several years of experiments, they were never able to maintain stable plasma and abandoned the project. The perhapsatron used a toroidal (doughnut-shaped) plasma confinement chamber, similar to those used in more modern Tokamak fusion devices. You have taken a job at a fusion research lab, and your supervisor asks you to develop a simple spreadsheet to calculate the volume of a torus within which the plasma will be contained in a new experimental reactor