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