Maths project

123456789101112
Across
  1. 3. more than a half less than a whole turn
  2. 8. right angle
  3. 9. A shape with 2 flat faces
  4. 11. constant circular cross-section
  5. 12. between a half and a quarter
Down
  1. 1. angles that add up too 180
  2. 2. two rays that meet
  3. 4. two rays that never meet
  4. 5. 2 faces 1 edge 1 vertices
  5. 6. less than a quarter turn
  6. 7. a solid without a constant cross-section
  7. 10. a solid with a constant cross-section
  8. 11. 6 rectangular faces