Answers to Shape Riddles

Great job on solving the shape riddles!  Here are the answers to the riddles that I gave you last week.  

Here are some that one of your friends came up with, see if you know the answers to these.

Today, you are going to put the 3D shapes into groups and tell me how you sorted them.  Did you group them by the number of faces?  Did you group them by the number of edges?  Maybe you grouped them based on the 2D shapes they have.  It is up to you how you group them...just tell me HOW you grouped them.

Here are the 3D shapes.  There are 2 new ones, pentagular prism and hemisphere.  Group them into different groups and explain how you grouped them.