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 Interactive Checkpoint
 Icosahedron:  A regular polyhedron whose twenty faces are congruent equilateral triangles.

Answer the following questions about icosahedrons.

 Enter your answer in the text box and press tab to check your response.

 Graded Response
 

a) Some role playing games use dice with different amounts of sides, or faces. What number-sided die will be an icosahedron?

 

 a)
 b) How many edges and vertices are on each face of a icosahedron?  b)