Until recently, there were just 14 known convex pentagons (nonregular, five-sided shapes with outward-pointing angles) that could “tile the plane” (be arranged with flush sides on a flat surface, with ...

Two years ago the mathematical world was abuzz about the discovery of a 15th tiling of the plane by convex pentagons (I wrote about it here). Still the question remains: are these the only ones or are ...

Consider the ceramic on the floor beneath you. Those squares or rectangles tile the plane. That's a mathematical term, and finding a new shape that covers a flat surface using only exact copies of ...

Consider the ceramic on the floor beneath you. Those squares or rectangles tile the plane. That's a mathematical term, and finding a new shape that covers a flat surface using only exact copies of ...

NPR's Robert Siegel speaks with Julie Rehmeyer, a contributing editor at Discover magazine, about a newly discovered pentagon. Scientists Discover 15th Convex Pentagon Able To Tile A Plane ROBERT ...