Geometry Midterm Crossword

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Across
  1. 5. SSA
  2. 6. reasoning that uses given facts, postulates, theorems to prove a new fact
  3. 8. a 3-dimensional object with two congruent bases
  4. 9. the "if" statement in a conditional statement
  5. 10. a face created when a plane slices through a solid
  6. 13. AAA can prove this about two triangles
  7. 14. two angles that have one common side
  8. 16. the sum of the three angles of a triangle is 180 degrees
  9. 20. a flat surface that stretches infinitely in all directions
  10. 21. an infinite collection of collinear points with no endpoints
  11. 22. two lines that never intersect
  12. 23. two pairs of congruent angles formed by any two intersecting lines
  13. 26. the type of geometric reasoning you are doing with lots of examples
Down
  1. 1. a closed shape with straight sides that has all equal side lengths and angles
  2. 2. a line or ray that divides an angle into two smaller congruent angles
  3. 3. connects two non-consecutive vertices
  4. 4. a mirror line for two halves of a symmetrical shape
  5. 7. a fact accepted without proof
  6. 11. has 8 polygonal faces
  7. 12. a pair of angles or segments in two triangles that are in the same relative position
  8. 15. a line or segment that is perpendicular to another segment at its midpoint
  9. 17. how to describe a triangle with all 60 degree angles
  10. 18. a line that intersects two or more other lines
  11. 19. geometric objet notated by two capital letters with a dash above both letters
  12. 24. the angle outside a triangle created by extending one side
  13. 25. a line segment in a triangle that connects two midpoints of two sides
  14. 27. corresponding parts of congruent triangles are congruent