Wednesday, July 6, 2011

Polyhedra- 3D Shapes

We were looking at Polyhedron shapes (3-D shapes with straight edges and flat sides) today. We had a go making them with play dough and iceblock sticks.
We were counting up (V) Vertices (Corners), (E) Edges and (F) Faces. Back in 1750 Leonard Euler discovered this pattern. The pattern was V+F-2 = E. With a cube you have 8 vertices and 6 faces (8+6=14) and subtract 2 and you get the number of edges (12). That’s pretty cool!

Reporter: Sam

3D Shapes on PhotoPeach

Posted by at
Labels:

4 comments:

  1. AnonymousJuly 7, 2011 at 8:12 AM

    Wow that formula was really interesting - I have learnt something new today.

    ReplyDelete
  2. AnonymousAugust 8, 2011 at 12:01 PM

    Well done Room 5. Your 3D shapes are awesome!

    From Malinda Williams

    ReplyDelete
  3. AnonymousAugust 9, 2011 at 10:53 PM

    THATS PRETTY COOL, I LOVED THE HEXAGON AND THE BLUE STUFF YOU CONNECTED IT WITH!

    XoXoxoXo

    ReplyDelete
  4. AnonymousNovember 29, 2011 at 7:09 PM

    This comment has been removed by a blog administrator.

    ReplyDelete

Subscribe to: Post Comments (Atom)