Posted by Joel on October 14, 2002 at 12:19:47:
In Reply to: SHAPES posted by ALAN BELL on October 14, 2002 at 11:21:36:
: CAN ANYONE HELP WITH MY DAUGHTERS HOMEWORK!!
: WHAT IS A SHAPE WITH 20 SIDES CALLED?
A flat (2-dimensional) polygon with 20 sides: icosagon
A solid (3-dimensional) object with 20 sides: icosahedron
Since you said "shape" rather than "object" I guess you're looking for icosagon.