Geometry

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Across
  1. 1. two lines that never touch
  2. 3. the line segment that joins a vertex and the midpoint of the opposite side of a triangle
  3. 4. an angle more than 90 degrees
  4. 6. an angle that measures 180 degrees
  5. 9. a pair of opposite angles formed by intersecting lines
  6. 10. an angle less than 90 degrees
  7. 12. two angles that add up to 180 degrees
  8. 15. a shape with three sides
  9. 16. a 90 degree angle
  10. 18. a line that connects of the sides of a triangle
  11. 19. the intersection of two noncollinear rays at a common endpoint
Down
  1. 2. a line segment from a vertex and perpendicular to the opposite side
  2. 5. intersects two or more lines in the same plane at different points
  3. 7. a point on a line that divides into two equal segments
  4. 8. a line that starts at an endpoint and goes on forever in one direction
  5. 11. two angles that add up to 90 degrees
  6. 13. use to mark and represent locations
  7. 14. a way to compare two numbers
  8. 17. a line that passes through the midpoint of a line
  9. 20. a straight line that goes on forever in both derections