We are not sure if a cone and a cylinder have edges so we tweeted to math monkey. Here is what they told us about edges:
@mrsaddison2 the edge on solids with straight sides...try Googling your ? to see what other mathematicians say, b/c they don't all agree
— Math Monkey (@Math_Monkey1) March 31, 2015
@mrsaddison2 Such a complicated question! Part of the answer is the 'edge' on a solid like a cylinder or cone is different than...
— Math Monkey (@Math_Monkey1) March 31, 2015
Check out some great games to help you learn about solids!
Geometric Solids
Shapes Splat
Solid Shapes Matching Game
Buried 3D Shapes
3D Shapes
Prisms and Pyramids:Nets
Not sure which 3D solids can stack, slide or roll? This video might help!
