A dad has been left stumped by his seven-year-old son's homework question, taking to social media to ask for help as he ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

So, faces? Well, just the one. Edges? Zero. Vertices? None. Oh dear! Oh well. The spheres are disappointed and one is angry. 3D shapes have faces (sides), edges and vertices (corners). Faces - A ...