geometry

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Across
  1. 2. (pizza pie, cookies, wheels of a bike)
  2. 4. (baseball diamonds, some kites, certain crystals)
  3. 11. A straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end.
  4. 12. (lids for types of cookie bins/containers)
  5. 15. curve A curve that is continuous and has endpoints that meet at the same point.
  6. 17. A math tool used for measuring or drawing angles.
  7. 19. (a garage, square rubber stamps, tiles on the floor)
  8. 20. Two rays that have a common end point.
  9. 21. A polygon having eight angles and eight sides.
  10. 22. Two angles that are next to each other.
  11. 24. A quadrilateral having both pairs of opposite sides parallel to each other.
  12. 25. A position in space.
  13. 26. (apartment buildings, hopscotch board, certain cell phones)
  14. 28. (The Pentagon, the designs found on soccer balls)
  15. 29. triangle A triangle which has two sides equal.
  16. 31. A straight path that has a beginning but not ending.
  17. 33. (a slice of pizza, a slice of cheese cut in that shape, a sandwhich cut in half diagonally)
  18. 35. A straight line extending from the center of a circle or sphere to the circumference or surface.
  19. 38. (crescent rolls, the moon during certain phases)
  20. 39. The muse
Down
  1. 1. The intersection point of two sides of a plane figure.
  2. 2. (cardboard inside a paper towel)
  3. 3. The line segment between two points on a given curve.
  4. 5. A polygon having six sides and six angles.
  5. 6. (stars up in the sky, a star necklace, star cookie cutters)
  6. 7. Two lines that form right angles where they intersect.
  7. 8. Where lines cross over at a common point.
  8. 9. (certain collectors coins)
  9. 10. The middle point.
  10. 13. (stop sign, some umbrellas)
  11. 14. (the trusses of a bridge)
  12. 16. (ice crystals, some snowflakes)
  13. 18. An angle greater than 90 degrees but less than 180 degrees.
  14. 19. (half a cookie, half a pizza pie, and other incomplete circles)
  15. 22. An angle that measures more than zero degrees but less than 90.
  16. 23. (covers for a cookie bin, some types of pill boxes)
  17. 27. triangle A triangle with one internal angle equal to 90 degrees.
  18. 28. (an actual pyramid, roof of a house)
  19. 30. An angle that measures 180 degrees.
  20. 32. An angle that measures more than 180 degrees but less than 360 degrees.
  21. 34. (cardboard box, cameras, cereal box)
  22. 36. A line that goes up and down.
  23. 37. A straight path that has a beginning and an ending.
  24. 40. (eyes, eggs, buns for a hot dog)