geometry

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Across
  1. 3. if it consists of the endpoint A and all points on AB that lie on the same side as A and B
  2. 5. the set of points two or more geometric figures have in common
  3. 8. has one dimension. it is represented by a line with two arrow heads but it extends without end
  4. 9. the point that divides a segment into two congruent segments
  5. 10. terms that can be described using known words
  6. 11. the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
Down
  1. 1. a flat surface made up of points that has two dimensions and extends without end and is represented by a slanted four-sided figure
  2. 2. consists of two end points and all the points in between them
  3. 4. is the absolute value of the difference of two coordinates on a line
  4. 6. a location in space that is represented by a dot and has no dimension
  5. 7. word that do not have a formal definition, but there is agreement about what they mean