Triangle sushi is a rice ball, also known as onigiri, that’s shaped into the form of a triangle. Although onigiri can be made into various shapes, triangle-shaped onigiri is typically the most common.

A new proof breaks a decades-long drought of progress on the problem of estimating the size of triangles created by cramming points into a square. Consider a square with a bunch of points inside. Take ...

Introduction Do you ever use math as a tool to solve interesting problems? In the 1970s math was often taught with simple worksheets. One teacher was looking for a way to help his students have more ...