no shit. you just described the pythagorean theorem. a² + b² = c². this is a program for your calculator that does all the work for you. -_-
no, if you know the angles you can use the law of cosines to find the side lengths. just learned about that yesterday in teh skool. at least i think so. we've been applying it to triangles that aren't right triangles but i don't see why it wouldn't work for a right triangle. if that is the case, i might write something to do if for me, if i do, i'll share with you nubbies. but i doubt i will that little phase died out fast. and .8xp is the extension because that's the extension for a TI-83/84 Plus calculator program, hence the [Calc] in the description.