geometry is fun

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Across
  1. 2. circles – two or more circles in the same plane with the same center.
  2. 4. lines – are noncoplanar lines they will not intersect.
  3. 5. triangle with an obtuse angle.
  4. 9. polygon – polygon which is equilateral and equiangular.
  5. 11. arc – arc whose measure is greater than a semi-circle (180 degrees).
  6. 17. – parallelogram with consecutive sides congruent.
  7. 19. – set of points in space a given distance from a given point called the center.
  8. 20. triangles – two triangles are congruent if corresponding sides are congruent and corresponding
  9. 21. triangle – triangle with all angles congruent.
  10. 24. triangle that has all acute angles.
  11. 26. – the set of points in a plane that are equidistant from a fixed point called the center.
  12. 27. – segment whose endpoints are the center of the circle and a point on the circle.
  13. 28. the figure formed by three segments joining three noncollinear points. Each of the three points
  14. 30. angle whose measure is between 0 degrees and 90 degrees.
  15. 32. – quadrilateral with both pairs of opposite sides parallel.
  16. 34. lines – two lines are parallel if they are coplanar and do not intersect.
  17. 36. triangle – triangle with at least two sides congruent.
  18. 39. triangle – triangle with no sides congruent.
  19. 40. angles – two angles whose sum is 90 degrees.
  20. 42. – parallelogram with a right angle.
  21. 43. set of points which has infinite length but no width or height. A line is named by a lower case letter or by any two points on the line.
  22. 44. angle whose measure is greater than 90 degrees but less than 180 degrees.
  23. 47. Theorem – in a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse
  24. 48. – chord that passes through the center of the circle.
  25. 49. are congruent.
Down
  1. 1. ray that divides an angle into two congruent adjacent angles
  2. 3. – quadrilateral with exactly one pair of opposite sides parallel.
  3. 6. – all sides congruent and all four right angles.
  4. 7. – union of 3 or more coplanar segments that meet only at endpoints such that at most two
  5. 8. lines – two lines that intersect to form right angles.
  6. 10. angles – the non-adjacent angles formed by two intersecting lines.
  7. 12. – consists of two points and the continuous part of a circle between them.
  8. 13. triangle with a right angle.
  9. 14. circles – circles that have congruent radii.
  10. 15. arc – arc whose measure is less than a semi-circle (180 degree).
  11. 16. – segment that connects two points on the circle.
  12. 18. angles that have the same measure.
  13. 22. – comparison of two numbers by division.
  14. 23. set of points that has infinite length and width but no height. We name a plane with a capital ‘funny font’ letter.
  15. 25. angle whose measure is 90 degrees.
  16. 29. – arc whose endpoints are the endpoints of a diameter.
  17. 31. – line in the plane of the circle that intersects the circle in one point.
  18. 33. triangle – triangle with all sides congruent.
  19. 35. angles – two angles whose sum is 180 degrees.
  20. 37. – line that intersects a circle in two points.
  21. 38. angles – two coplanar angles with a common vertex and a common side between them
  22. 39. angle whose measure is 180 degrees.
  23. 41. – equation that states two ratios are equal.
  24. 45. angle of a circle – angle whose vertex is the center of the circle and whose rays are radii of the circle.
  25. 46. of a triangle – segment from the vertex of a triangle to the midpoint of the opposite side.
  26. 47. has no size; length, width, or height. It is represented by a dot and named by a capital letter.
  27. 49. of a triangle – segment from the vertex of a triangle perpendicular to the line containing the opposite side.