陈荣城 circle review2

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Across
  1. 2. polygon a regular two dimensional shape which formed at least three sides and lines
  2. 5. triangle a triangle whose at least two lines are both equal
  3. 7. a two dimensional figure which was organized by three lines and three angles.
  4. 10. a flat shape with six lines and 6 angles
  5. 13. triangle the triangle that is inscribed in a circle
  6. 14. a flat shape with 9 lines and 9 angles
  7. 15. a flat shape with 8 lines and 8 angles
  8. 16. the point that the intersection of all medians connect in a triangle.
  9. 17. a shape with four lines
Down
  1. 1. the center of an inscribed circle
  2. 3. a flat shape with 7 lines and 7 angles
  3. 4. circle the triangle that cover a circle
  4. 6. a regular quadrilateral which formed by four equal lines and four 90 degree lines
  5. 8. triangle a triangle whose three lines are all equal
  6. 9. a flat shape with 10 lines and 10 angles
  7. 11. a flat shape which formed by five lines and angles
  8. 12. a flat shape with 12 lines and 12 angles