Geometry

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Across
  1. 3. a line that goes through the center of the circle
  2. 5. Base X Height
  3. 7. angle less than 90 more than 0
  4. 9. 3 sides
  5. 10. part of a circle from the middle
  6. 12. angle two angles that equal 180°
  7. 14. shape with 4 sides
  8. 15. angle 90 degrees
  9. 16. angel two angels that equal 90°
Down
  1. 1. shape
  2. 2. the distance around a circle
  3. 4. shape with even sides
  4. 6. grater than 90 less than 180
  5. 8. the space taken by a flat 2-d shape
  6. 11. angle 180
  7. 13. 3.14