What platform are you working on.

When you say draw, I assume you want something to appear on the screen. I assume also that when you're talking about 3D you mean you want to draw something like a pyramid, with 4 or perhaps 5 corners.

Next are you trying to make a solid shape, or just the outline. Once you're decided how you're going to display this stuff, then putting the data together is fairly simple. As a start consider http://www.codersource.net/mfc_tutorial_Part3.html