Geometry Crossword Puzzle

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Across
  1. 1. , A transformation that maps a figure onto itself.
  2. 4. , A four-sided polygon.
  3. 9. , a line with a single endpoint (or point of origin) that extends infinitely in one direction.
  4. 10. , A common endpoint of two sides of a polygon or an angle.
  5. 11. , A polygon with three edges and three vertices.
  6. 13. , preserves line lengths and angle measurements
  7. 15. , An eight-sided polygon.
  8. 16. , A segment that connects two nonadjacent vertices of a polygon.
  9. 18. , A five-sided polygon.
  10. 19. , A series of connected line segments that starts and ends at the same place and does not intersect itself anywhere in between.
  11. 20. , A six-sided polygon.
Down
  1. 2. ,a three-sided figure that sides are all the same length.
  2. 3. Bisector , A line that intersects a given segment at right angles and divides it into two equal parts.
  3. 5. lines , straight lines that do not intersect at any point.
  4. 6. , A set of points on a line consisting of two endpoints and all the points between them.
  5. 7. , A seven-sided polygon.
  6. 8. , Is any Polygon whos sides have all equal legths and whose angles all have equal measures.
  7. 12. Angle , An angle that measures 90ยบ.
  8. 14. , Two geometric objects having the same measure.
  9. 17. , A figure formed by two line segments or rays with a common endpoint.