Across
- 6. A specific case where the conjecture is wrong
- 10. The arc length of a circle
- 11. (Draw pic)angle-bisector
- 14. A line that intersects 2 or more coplanar lines at differnt points
- 16. (draw pic)angle
- 17. The point where all 3 altitudeds of the triangle intersect
- 18. A shape with 10 sides
- 19. (draw pic)rectangle
- 20. An unproven statement based on observations
Down
- 1. (draw pic)acute angles
- 2. if not A then not B
- 3. Three or more points that lie on the same plane
- 4. squareroot (x2-x1)+(y2-y1)^2
- 5. (Draw pic)consecutive angles
- 7. the number of unit squares that cover the surface of a closed figure
- 8. The length of the outline of a shape
- 9. (draw pic)colinear points
- 12. (draw pic)centroid
- 13. a2+b2=c2
- 15. The equidistant from both endpoints