Across
- 4. two rays that have the 'same endpoint and extend in opposite directions
- 7. a quadrilateral whose opposite sides are parallel and equal
- 8. having four right angles
- 11. extending or lying across
- 14. the length of a straight line through the center of a circle
- 16. a half circle formed by cutting the circle into two halves.
- 18. a parallelogram with four equal sides
- 22. a triangle with no two sides of equal length
- 23. a continuous portion of a circle
- 24. a round three-dimensional closed surface
- 26. an unproven statement which is supported by all the available data and by many weaker results
- 28. a polygon with four equal sides and four right angles
- 29. lying or acting in the same plane.
- 32. relation with respect to comparative quantity or magnitude
- 33. where 2 points meet
- 34. lying or acting in the same line.
- 37. the quality of being alike
- 38. angle measures less than 90 degrees
- 39. sum of 180 degrees
- 40. a four-sided polygon
- 43. a one-dimensional figure, which has length but no width.
- 44. corresponding in character or kind
- 45. a closed plane figure bounded by straight sides
- 46. sum of 90 degrees
- 47. location
Down
- 1. a line that touches a curve at only one point
- 2. a point equidistant from the ends of a line or the extremities of a figure
- 3. a three-sided polygon
- 5. triangle with 1 right angle
- 6. a quadrilateral with one pair of parallel sides
- 9. two or more lines that are always the same distance apart and never intersect, even if they are extended infinitely in both directions.
- 10. the space between two lines or planes that intersect
- 12. a polyhedron having a polygonal base and triangular sides
- 13. a plane curve with every point equidistant from the center
- 15. a line that divides a line segment or an angle into two equivalent parts
- 16. ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
- 17. ratio of the adjacent side to the hypotenuse of a right-angled triangle
- 19. at an angle of 90° to another line or surface
- 20. an area that is in the middle of some larger region
- 21. a line with a single endpoint (or point of origin) that extends infinitely in one direction
- 23. measure of a region
- 25. relation with respect to comparative quantity or magnitude
- 26. 6 sided polygon
- 27. either of two equal and opposite angles formed by the intersection of two straight lines
- 30. a line enclosing a plane area
- 31. the angle formed in the interior of a circle when two chords intersect on the circle
- 35. angle measures more than 90 degrees
- 36. angle measures 90 degrees
- 41. a one-dimensional figure which describes a path between two points
- 42. a straight line from the center to the perimeter of a circle