Geometry - Lines and Angles

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Across
  1. 2. line segment with only one end point
  2. 3. are always the same distance apart
  3. 7. shows position
  4. 8. an angle greater than a straight angle but less than a revolution. A reflex angle contains more than 180º and less than 360º
  5. 9. an angle greater than a right angle and less than a straight angle. An obtuse angle contains more than 90º and less than 180º
  6. 11. an angle formed by 1/2 a revolution. A straight angle contains 180º. The sides extend in both directions, forming a straight line
  7. 14. rays are called sides and the common end point is called the vertex
  8. 15. two angles whose sum is a straight angle
  9. 16. on for ever in both directions
  10. 19. line segment that makes up a triangle or polygon
  11. 21. an angle formed by a quarter of a revolution a right angle has 90º
  12. 22. shape with exactly the same dimensions but in a different location
  13. 23. figures that have the same shape but with different dimensions
  14. 24. one side is identical to the other as if you were looking at a mirror on the dividing line
Down
  1. 1. two intersecting lines,
  2. 4. two angles whose sum is a right angle.
  3. 5. point where two or more line segments or rays meet plural is vertices
  4. 6. two lines that cross at a vertex. Opposite angles are congruent
  5. 10. form four right angles
  6. 12. an angle less than a right angle. An acute angle contains more than 0º and less than 90º
  7. 13. points where two or more line segments or rays meet singular is vertex
  8. 17. part of a line joining two points and the points between
  9. 18. only has length and no width
  10. 20. union of two rays with a common end point.