Geometry Basics

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Across
  1. 2. A perpendicular segment from the center of a circle to the side of a polygon
  2. 5. When two or more coplanar circles share the same center
  3. 6. Region between two concentric circles
  4. 7. Each line segment of a polygon
  5. 8. Line segment whose endpoints lie on the circle
  6. 9. The side of a rectangle
  7. 12. Statement that clarifies the meaning of a word or phrase
  8. 15. At least one diagonal is outside the polygon
  9. 16. Same plane
  10. 19. The measure of an angle between 0 and 180
  11. 20. Common endpoint of the rays
Down
  1. 1. Accept something is true without facts or proof
  2. 3. Ends of a segment
  3. 4. Same line
  4. 5. two segments with same measure or length
  5. 10. Divides segment into two congruent segments
  6. 11. The use of inductive reasoning to make a generalization
  7. 13. Infinite length, no thickness, arrangement of many points
  8. 14. Formed by two rays that share a common endpoint
  9. 17. Most basic building block of geometry
  10. 18. Half a line and half a segment