Angles and Shapes

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Across
  1. 2. a point where 2 angles begin or meet
  2. 6. a cube has 6 of these
  3. 8. angle that adds up to 180 degrees
  4. 9. a flat shape folds to make a solid
  5. 10. this shape has 2 circular faces and 1 curved face
  6. 13. an angle that is greater than 180 degrees but less than 360 degrees
  7. 15. angle that measures more than 90 degrees but less than 180 degrees
  8. 16. sum of angles 360 degrees
  9. 17. measures to 90 degrees
  10. 19. angles that are smaller than 90 degrees
  11. 20. the line joining 2 vertices of a solid
Down
  1. 1. we use this instrument with the degrees on it
  2. 3. 2 angles whose sum is 90 degrees
  3. 4. a polygon with 3 sides
  4. 5. -this shape has 6 square faces
  5. 7. shape has no vertices it is round
  6. 11. a solid shape with constant cross section
  7. 12. the plural of vertex
  8. 14. angle - makes a half turn
  9. 18. prism- looks like a book