What is Catalan solid?
'''Catalan solids''' are a concept from [[geometry]]: For each [[Archimedean solid]] there is a Catalan solid that is its [[dual polyhedron]]. In total, there are thirteen Catalan solids (as there are thirteen Archimedean solids). They are named after the Belgian mathematician [[Eugène Charles Catalan]] of the 19th centurty. Each Catalan solid is a [[convex polyhedron]]. Like with Archimedean solids, each surface is made of the same shape. [[Category:Polyhedra]] {{math-stub}}