Across
- 3. A polygon in which no diagonal contains points in the exterior of the polygon
- 6. A quadrilateral with four right angles
- 8. A point where three or more lines coincide
- 10. A style of proof that uses coordinate geometry and algebra
- 13. A theorem whose proof follows directly from another theorem
- 15. A quadrilateral with four congruent sides and four right angles
- 16. A set of points that satisfies a given condition
- 17. The side opposite the vertex angle
- 18. A triangle with three acute angles
- 19. The set of all points outside a polygon
- 21. The same distance from two or more objects
- 23. Three or more lines that intersect at one point
- 24. Every vertex of the polygon lies on the circle
- 25. A triangle with three congruent angles
Down
- 1. Two polyons whose corresponding sides and angles are congruent
- 2. One of the two nonparallel sides of the trapezoid
- 4. The intersection of two sides of the polygon
- 5. A quadrilateral with four congruent sides
- 7. A quadrilateral with exactly one pair of parallel sides
- 9. A quadrilateral with two pairs of parallel sides
- 11. A polygon that is both equilateral and equiangular
- 12. A triangle with three congruent sides
- 14. A trapezoid in which the legs are congruent
- 20. A circle in which each side of the polygon is tangent to the circle
- 22. A line drawn in a figure to aid in proof