Geometry Words to Know

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Across
  1. 1. A tool used for drawing circles and arcs
  2. 3. An angle that measures more than 90 degrees but less than 180 degrees
  3. 4. A line or segment that divides another line or angle into two equal parts
  4. 5. Points that lie on the same straight line
  5. 10. Having the same size and shape
  6. 13. Two angles whose measures add up to 180 degrees
  7. 15. A part of a line with two endpoints
  8. 17. The point where two lines or segments meet
  9. 19. Two angles whose measures add up to 90 degrees
  10. 20. A specific location in space, often represented by a dot
  11. 21. An angle that measures more than 180 degrees but less than 360 degrees
  12. 23. An angle that measures exactly 180 degrees, forming a straight line
  13. 24. Points or lines that lie in the same flat surface or plane
  14. 26. Angles formed by intersecting lines and are opposite each other
Down
  1. 1. A set of numbers that define the position of a point in space
  2. 2. A tool used for measuring angles
  3. 6. A tool used for measuring and drawing straight lines
  4. 7. An angle that measures less than 90 degrees
  5. 8. The common endpoint of the two rays that form an angle
  6. 9. The length between two points
  7. 11. Angles that share a common side and a common vertex, but do not overlap
  8. 12. Lines or segments that intersect at right angles (90 degrees)
  9. 14. The space between two intersecting lines or surfaces
  10. 16. The point that divides a segment into two equal parts
  11. 18. A part of a line that starts at one endpoint and extends infinitely in one direction
  12. 20. A flat, two-dimensional surface that extends infinitely in all directions
  13. 22. A straight path that extends infinitely in both directions
  14. 25. Lines that are always the same distance apart and will never intersect