Geometry Terms Crossword Puzzle

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Across
  1. 3. An angle that measures 90°
  2. 4. A triangle with all three sides with different lengths
  3. 8. Distance around a circle (the perimeter)
  4. 9. The line segment from the center of a regular polygon to the midpoint of a side
  5. 11. Two rays sharing a common endpoint
  6. 12. Part of a curve
  7. 15. A transformation that is invariant with respect to distance.
  8. 17. A triangle with all three sides of equal length (each internal angles = 60°)
  9. 18. Line Segments that intersect (cross) at an angle of 90°
  10. 19. Part of a line between two points
  11. 20. A location in space-a dot on a piece of paper
Down
  1. 1. Line segments that never intersect (they are always the same distance apart) and have the same slope
  2. 2. A triangle with two equal length sides (and two equal internal angles)
  3. 5. An angle that measures less than 90°
  4. 6. Point at which two line segments intersect (forming an angle)
  5. 7. Angles Two angles in a plane which share a common vertex and a common side but do not overlap.
  6. 10. An angle that measures more than 90°
  7. 13. A line segment joining two points on a curve
  8. 14. A line segment (or length) joining two points on a circles circumference and passes through the circle's center (twice the length of the radius)
  9. 16. Distance (line segment) from center of a circle to any point on that circle's circumference