Math project crossword puzzle

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Across
  1. 2. one point. divides a line evenly into 2 parts.
  2. 4. used to find the distance between two points. used on a graph.
  3. 5. formed by two rays with a common endpoint. the rays are called sides
  4. 9. all 4 angles 90 degrees. diagonals are congruent.
  5. 11. extends indefinitely in one direction. starts at a point
  6. 12. a specific location, has no size or shape.
  7. 13. it is a quadrilateral. diagonals bisect each other.
  8. 15. measurable part of a line. has 2 end points.
  9. 16. angle of a line. has measure of 180 degrees
  10. 17. flat surface made up of points. extends in all directions
Down
  1. 1. form straight line. supplementary adjacent angles
  2. 3. meet at 90 degree angle. Have opposite reciprocal slopes.
  3. 6. always congruent. 2 angles directly across from each other
  4. 7. type of triangle. 2 congruent angles, 2 congruent sides.
  5. 8. one 90 degrees angle. type of triangle.
  6. 10. study of triangles. used in unit 8
  7. 11. aka diamond. opposite angles are congruent.
  8. 14. common endpoint of an angle. where the sides intersect.
  9. 15. made up of points. has no size or shape
  10. 17. a closed figure. has 3 or more sides.