Add Yahoo as a preferred source to see more of our stories on Google. The nine rectangles A, B, C, D, E, F, G, H and I overlap one another. Rectangle A intersects ...

Well, what is the best way to cut a sandwich in half? Surely triangles don't really have "more sandwich," right? That's geometry and the law of conservation of matter. But something about the ...

An important lesson in every geometry class is learning the differences between rectangles and squares. So, as we start a brand new school year, let’s keep this challenge incredibly simple: In the ...