circle review Caren

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Across
  1. 4. any ten-sided polygon or 10-gon.
  2. 5. any six-sided polygon or 6-gon.
  3. 8. any twelve-sided polygon or 12-gon.
  4. 12. a regular quadrilatera.
  5. 13. grandpa
  6. 14. a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
  7. 16. a circle that passes through all the vertices of the polygon.
  8. 17. a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain or polygonal circuit.
  9. 18. any nine-sided polygon or 9-gon.
  10. 19. the center of mass of two or more bodies that orbit one another and is the point about which the bodies orbit.
  11. 20. a line segment from the center to the midpoint of one of its sides.
Down
  1. 1. a triangle center.
  2. 2. a polygon with four edges (or sides) and four vertices or corners.
  3. 3. a triangle that has two sides of equal length.
  4. 6. any five-sided polygon or 5-gon.
  5. 7. the largest triangle contained in the circle.
  6. 9. a triangle in which all three sides are equal. I
  7. 10. a polygon with three edges and three vertices. It is one of the basic shapes in geometry.
  8. 11. any seven-sided polygon or 7-gon.
  9. 15. any eight-sided polygon or 8-gon.