Math Central - mathcentral.uregina.ca
Quandaries & Queries
Q & Q
 Topic: icosahedron
start over

4 items are filed under this topic.

 Page1/1
 The inradius of an icosahedron 2010-01-21 From fnavroth:Suppose you have an equilateral triangle. The area of the triangle is exactly 1200 square centimetres. Now suppose you have twenty of those triangles. It's possible to assemble those twenty triangles into a closed three-dimensional shape, a regular polyhedron. What would be the volume, in cubic centimetres, of the largest sphere that could fit inside the shape?Answered by Chris Fisher. The radius of a soccor ball 2006-05-05 From Jacqui:A soccer ball is made up of hexagons and pentagons with the same side lengths. A manufacturer wants to produce a ball of certain diameter. The questions that follows is what side length for the polygons will produce a ball of certain diameter.Answered by Chris Fisher. Platonic Solids Surface Area 1998-12-02 From Rachel Bidwell:How do you find the surface area of the 5 platonic solids, when they each have a volume of one cubic inchAnswered by Harley Weston. Un polyedre ayant comme face 20 triangles 2000-08-02 From Sonia:J'aimerai savoir comment s'appelle un polyedre ayant comme face 20 triangles équilatéraux égaux.Answered by Chris Fisher.

 Page1/1

 Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
 about math central :: site map :: links :: notre site français