Geometry

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Across
  1. 2. Twelve inches is equal to what?
  2. 4. A 3-sided polygon
  3. 7. An angle that measures between 0 and 90 degrees
  4. 8. Three feet is equal to what?
  5. 9. Lines that form a right angle
  6. 10. The height of a triangle is called what?
  7. 11. A round three dimensional object
  8. 13. A rectangle having all four sides of equal length
  9. 16. What measures 90 degrees?
  10. 17. Points lying in the same plane are what?
  11. 18. Someone who is an expert in math is called what?
  12. 19. An angle measuring between 90 and 180 degrees
Down
  1. 1. Represented by a dot
  2. 3. The distance around a circle is called what?
  3. 5. A shape with 6 sides and 6 angles
  4. 6. A 4-sided polygon
  5. 11. A 180 degree angle
  6. 12. A shape with 5 sides and 5 angles
  7. 14. 5280 feet is equal to what?
  8. 15. The set of all points is what?