There you go mikau, I finally posted an introduction . At the moment I am in "year 12" (is that what its called in America?) - the last year of high school. I am only 17, but may do maths at university next year. Therefore I will be studying high school maths at the moment, hence the reason why I was pleased to see irspower's alternive proof for my spheres question - becuase it involves maths I don't currently know.

Hope that helped