Geometry Crossword

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Across
  1. 4. opposite/adjacent
  2. 5. a seven sided figure
  3. 7. parallelogram containing four right angles
  4. 8. the "then" part of a conditional statement.
  5. 9. the part of a line that connects two points
  6. 10. the total distance around the edge of the figure
  7. 14. the sum of angles adding to be 180 degrees
  8. 15. he point where two rays begin or meet, where two line segments join or meet, where two lines intersect
  9. 16. A set of points, lines, line segments, rays or any other geometrical shapes that lie on the same plane
  10. 17. Two lines that intersect and form right angles
  11. 19. a formal series of statements showing that if one thing is true something else necessarily follows from it
  12. 21. lying on the same line
  13. 22. convex quadrilateral with at least one pair of parallel sides
  14. 26. The angle or arc that when added to a given angle or arc makes 180° or a semicircle.
  15. 28. A line which starts at a point with given coordinates, and goes off in a particular direction to infinity, possibly through a second point.
  16. 29. two angles that have a common vertex and a common side
  17. 32. a three sided figure
  18. 33. connects two points via the shortest path, and then continues on in both directions
  19. 34. adjacent/hypotenuse
Down
  1. 1. a line segment connecting a vertex to the line containing the opposite side and perpendicular to that side
  2. 2. combination of two rays (half-lines) with a common endpoint
  3. 3. The side opposite the right angle in a right-angled triangle
  4. 6. A line that intersects a system of other lines.
  5. 11. statement is defined to be true whenever both parts have the same truth value.
  6. 12. having an outline or surface that curves inward like the interior of a circle or sphere.
  7. 13. An image or shape as it would be seen in a mirror.
  8. 18. nine sided figure
  9. 20. an if-then statement with a hypothesis and conclusion
  10. 23. a four sided figure with four equal sides and four equal angles
  11. 24. the "if" part (antecedent) of a conditional statement.
  12. 25. A closed plane figure having three or more sides
  13. 26. the same on both sides
  14. 27. A transformation in which a plane figure turns around a fixed center point.
  15. 30. a ten sided figure
  16. 31. the "if" and "then" parts of a sentence are switched