geometry

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