geometry crossword puzzle

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Across
  1. 3. the common endpoint of an angle.
  2. 4. a line or ray that divides an angle into equal parts.
  3. 5. two lines that never intersect.
  4. 11. an angle with a degree less than 90
  5. 12. no sides on the triangle are congruent
  6. 14. an angle with the degree of 180
  7. 17. points that lie on the same plane.
  8. 18. the point t which three altitudes intersect in a triangle.
  9. 19. a line that extends indefinitely in one direction.
  10. 20. made up of points with no thickness.
Down
  1. 1. points that lie on the same line.
  2. 2. two angles directly across from each other on intersection lines.
  3. 6. the intersection of two rays at an endpoint.
  4. 7. a measurable part of a line consisting of two end points.
  5. 8. a segment that joins two sides of a triangle.
  6. 9. a flat surface made up of points and extends indefinitely in all directions.
  7. 10. an angle with the degree of 90
  8. 13. an angle with a degree greater than 90
  9. 15. a point is a location with no size or shape.
  10. 16. a segment that connects a vertex of a triangle to the midpoint of the opposite side.