okay here's your volume of your basic torus and here's your surface area
Better luck filching this time.
Peter Brett, an engineer at the University of Cambridge UK, posted a very clear explanation of these torus formulae on the BBC's h2g2, a cyber-encyclopedia companion to "Hitchhiker's Guide to the Galaxy." Peter Brett also plays the horn, but his musical tastes include house and trance, and he likes Ministry of Sound and Infected Mushroom.
As Vleeptron has noted before, there is a very big Intersection Set between science and math(s) students, and the bunch wrestling with Mozart in the school orchestra. Inside their heads they may recognize no particular distinction between music and mathematics. There may indeed be no particular distinction.
His college report card is scary and makes me feel downright ashamed of my confused years as a student. But he kindly critiqued my image and pronounces it "Spot on!" Now you know how much olive oil you can store inside your torus, and how much paint you'll need to paint the outside of your torus.