How are soccer balls not flat quilts?

June 7th, 2010 | by admin |
Elena C asked:


I have a math project we’re doing polygons. I know that they are made of pentagons and hexagons sewn together but how does it make it round? Please help me!! Thought out answers are great!

Cleaning Vinyl Siding
Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages.
  • Digg
  • Bumpzee
  • del.icio.us
  • Facebook
  • Furl
  • Mixx
  • NewsVine
  • Reddit
  • StumbleUpon
  • YahooMyWeb
  • Google

  • How do you “set-in” the squares and triangles on a lone star quilt without causing the fabric to pucker?
  • Does anyone know where I can buy completed quilts on the internet?
  • Where can I buy a modern contemporary quilts with modern designs?
  • What is the best way to store quilts without an extra bed to lay them on?
  • Does anyone know of a good website for cross stitch quilts?

    1. 2 Responses to “How are soccer balls not flat quilts?”

    2. By Peter H on Jun 10, 2010 | Reply

      The internal angle of a regular hexagon is 120 degrees. If you sew 3 hexagons together they would lie on a flat surface. However, the internal angle of a regular pentagon is only 108 degrees, so if you sewed it to a hexagon there would be a gap if you tried to attach a second hexagon. If you bring together the edges of the gap, the result will no longer lie on a flat surface, and you will have started to make a ball

    3. By Dancing Diva !!! on Jun 12, 2010 | Reply

      they are stuffed or blown to size

    Sorry, comments for this entry are closed at this time.