Icosahedron Crossword Puzzle

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Across
  1. 3. the number of edges that meet in a vertex
  2. 5. the number of faces in an icosahedron
  3. 7. the number of vertices in an icosahedron
  4. 9. the festival of colors
  5. 10. the faces of the icosahedron are all ___________ triangles
Down
  1. 1. the number of edges in an icosahedron
  2. 2. an icosahedron is a ________ solid
  3. 4. the degree measures of each angle between edges in an icosahedron
  4. 6. the only line in the parts of icosahedron
  5. 8. icosahedron has the largest volume among all platonic solids for its surface area