Posted on December 31, 2011March 9, 2019 by Bard Math CircleProblem 6: Tetrahedral Numbers A tetrahedron (triangular pyramid) is made by piling up four layers of tennis balls. How many tennis balls are used in all? Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on LinkedIn (Opens in new window) LinkedIn Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Like this:Like Loading... Related
