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 Interactive Checkpoint
 Tetrahedron:  A regular polyhedron whose four faces are congruent equilateral triangles.

Answer the following questions about tetrahedrons.

 Enter each answer in the text box below and press tab to check

 Graded Response

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

 a)
b) How many edges and vertices are on each face of an tetrahedron?  b)
c) A tetrahedron is what type of solid?  c)