The nine rectangles A, B, C, D, E, F, G, H and I overlap one another. Rectangle A intersects rectangles D and F; this ...

In mid-March, the mathematicians Joshua Greene and Andrew Lobb found themselves in the same situation: locked down and struggling to adjust while the COVID-19 pandemic grew outside their doors. They ...

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 ...

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 ...

Label the rectangles correctly with the letters A to I. Show puzzle solution Only the four yellow rectangles intersect three other rectangles, and therefore they must be F, G, H and I. H doesn’t ...