Geometry Vocabulary

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Across
  1. 4. distance around a shape
  2. 5. names a location and has no size
  3. 7. lines or points that exist in the same plane
  4. 9. two angles whose sum is 180 degrees
  5. 12. a straight path with no thickness
  6. 14. to divide into two congruent parts
  7. 16. triangle with at least two congruent sides
  8. 19. set of points that lie on the same line
  9. 20. non-coplanar lines that do not intersect
Down
  1. 1. the theorem that states the sum of the squares of the legs of a right triangle is equal to the square of the hypotenuse
  2. 2. statement believed to be true but not proven
  3. 3. angle greater than 0 degrees but less than 90 degrees
  4. 6. statement accepted as true without proof
  5. 8. coplanar lines that do not intersect
  6. 10. a flat surface that has no thickness
  7. 11. an example that disproves a conjecture
  8. 13. point that is equidistant from the end points of a segment
  9. 15. nonadjacent angels formed by intersecting lines
  10. 17. triangle with no congruent sides
  11. 18. two rays with a common endpoint