Euclidean Geometry - definitions

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Across
  1. 1. Not convex.
  2. 3. If the sum of two angles is 180°, they are...
  3. 6. Infinite set of aligned points.
  4. 7. Continuous and smooth line.
  5. 9. Figures that you can transform one into another with rigid motions.
  6. 10. Adjacent angles whose non common sides are two opposite rays.(2 words)
  7. 13. Figure bounded by a simple closed polygonal chain.
  8. 15. Part of the line, that starts at a point and extends to infinite in one direction.
  9. 16. Part of the plane between two rays that have a common origin.
  10. 17. Angles that share the vertex and a side.
Down
  1. 1. If the sum of two angles is 90° they are...
  2. 2. Angles whose sides form two pair of opposite rays.
  3. 4. connected series of consecutive and not adjacent segments.(2 words)
  4. 5. Set of points on a plane.
  5. 8. Part of the line between two points.
  6. 11. An equilateral and equiangular polygon is...
  7. 12. A specific location in space. It has no dimension.
  8. 13. Set of infinitely many lines. It has two dimensions.
  9. 14. points on the same line are...
  10. 18. When the segment between any of the points of the figure is fully contained in the figure, that figure is...