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48
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Across 1. a 6-sided polygon 2. a quadrilateral with four right angles and four congruent sides 6. an equation stating that two ratios are equal 9. the point that divides the segment into two congruent segments 12. a triangle with at least two congruent sides 14. a segment from the vertex to the midpoint of the opposite side 15. a triangle with no sides congruent 17. a rectangular solid with square faces 18. a figure formed by two rays that have the same endpoint 19. two angles whose sides form two pairs of opposite rays (2 wds) 20. an angle formed by two radii drawn to consecutive vertices (2 wds) 22. points all in one plane 23. a quadrilateral with both pairs of opposite sides parallel 25. a triangle with three acute angles 29. an angle with measure of 90 degrees (2 wds) 30. a quadrilateral with exactly one pair of parallel sides 31. a circle drawn around a polygon so that each vertex of the polygon lies on the circle 34. a segment joining two non-consecutive vertices of a polygon 35. a line that contains a chord 40. a plane figure formed by coplanar segments such that (1) each segment intersects exactly two other segments; and (2) no two segments with a common endpoint are collinear 41. a triangle with one obtuse angle (2 wds) 42. coplanar lines that do not intersect 43. two lines that intersect to form right angles (2 wds) 45. a quadrilateral with four congruent sides 47. a statement that is accepted without proof 48. a triangle with all sides congruent 49. a triangle with one right angle (2 wds) 51. any perpendicular segment connecting a vertex to an opposite side 52. an arc of a circle cut off by the diameter 53. an angle with measure between 90 and 180 degrees (2 wds) 54. in a right triangle a side adjacent to the right angle

Down 1. in a right triangle the side opposite the right angle 3. the distance from the center of a circle to any of its points 4. the figure formed by three segments joining noncollinear points 5. a chord that contains the center of a circle 7. a statement that can be proved 8. lines that are not coplanar 10. a line, segment or ray that intersects a segment or angle and forms two congruent segments or angles 11. points all in one line 13. two angles whose measures have the sum 180 degrees 16. two triangles with sides of equal length and angles of equal measure (2 wds) 21. a segment whose endpoints lie on a circle 24. two angles in a plane that have a common vertex and a common side but no common interior points (2 wds) 26. a 5-sided polygon 27. a 4-sided polygon 28. a quadrilateral with four right angles 32. a line that intersects two or more coplanar lines in different points 33. segments that have equal length (2 wds) 36. the angle formed when one side of a polygon is extended (2 wds) 37. a line in the plane that intersects a circle in exactly one point 38. an angle with measure of 180 degrees (2 wds) 39. two angles whose measures have the sum of 90 degrees 44. two triangles with congruent angles and corresponding sides in proportion 45. a polygon that is both equiangular and equilateral 46. two points on a line and all the points between them 50. the set of all points in space that are a given distance from a given point