Geometry!

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Across
  1. 2. a way to describe a shape with atleast two equal sides
  2. 4. A group of shapes that are closed and has straight lines.
  3. 7. a location that is represented by a dot
  4. 9. three sided group of shape
  5. 11. You use a protractor to measure it
  6. 12. It relates to geometry, and is according to its methods.
  7. 14. a way of describing that a shapes angle is 90°
  8. 17. a line with a single point of origin
  9. 18. a way of describing that a shapes angle is smaller than 90°
  10. 19. a shape that has at least two sides that come together at a 90-degree angle
  11. 20. a way to describe an equally sided shape
Down
  1. 1. a five sided shape
  2. 3. a way of describing that a shapes angle is bigger than 90°
  3. 5. an eight sided shape
  4. 6. a long/short band, similar to a dash
  5. 8. a four sided shape
  6. 10. a way to describe a shape with no equal sides
  7. 13. a way of describing that a polygon has sides and angles that vary
  8. 15. seven sided group of shape
  9. 16. a way of saying that a shape or polygon has sides that are the same