Geometry

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Across
  1. 2. a triangle with an angle larger than 90 degrees
  2. 5. a 4-sided shape with 90 degree angles and equal sides
  3. 6. an enclosed shape with sides that do not cross
  4. 9. a round shape
  5. 13. the _ in a triangle have a sum of 180
  6. 17. a triangle with all sides the same
  7. 18. a line segment from the center of a circle to the edge of a circle
  8. 20. described the relationship between sides in a right triangle
  9. 21. a 4-sided polygon with 90 degree angles
  10. 22. an object with a circle base and pointed other end
  11. 23. a 3-sided polygon
Down
  1. 1. a triangle with 2 sides the same
  2. 3. _ lines meet at a 90 degree angle
  3. 4. the long side of a right triangle
  4. 5. _ triangles have the same shape but can have different values
  5. 7. a triangle with all angles less than 90 degrees
  6. 8. an object with a polygon base and pointed other end
  7. 10. the short sides in a right triangle
  8. 11. the opposite of squaring a number
  9. 12. a line segment across the middle of a circle
  10. 14. 2-dimensional thing
  11. 15. where two sides connect
  12. 16. 3-dimensional thing
  13. 18. a triangle with a 90 degree angle
  14. 19. a triangle with no sides the same