 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Joshua, a student: what shape has 4 faces, 4 corners and 9 edges? |
Joshua,
Did you mean 4 faces, 4 corners and 6 edges? That would be a tetrahedron. What you describe, if I read it correctly doesn't exist. 'corners' - 'edges' +'faces' = 2 is the right relationship (discovered by Euler).
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.