Geometry Vocabulary Crossword

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Across
  1. 1. an arc that is less than 180 degrees
  2. 4. a²+b²=c²
  3. 5. the opposite of the sine function to find the measure of an angle
  4. 7. angle with the vertex being the center of a circle
  5. 10. study of triangle measurement
  6. 12. when a triangle may have two solutions regarding the law of sines
  7. 15. opposite/hypothenuse
  8. 18. a quadrilateral with 2 pairs of consecutive and congruent sides
  9. 20. a portion of a circle (like a slice of pizza)
  10. 23. a line or ray that splits an angle into two equal smaller angles
  11. 24. an arc that is exactly 180 degrees
  12. 28. a quadrilateral with 2 pairs of parallel sides, 4 right angles, and 4 congruent sides
  13. 29. the angle that is formed by the observer's line of sight (looking up) and a horizontal line
  14. 30. a quadrilateral with 1 pair of parallel sides
  15. 31. a segment in a circle with endpoints on the edges of a circle
  16. 33. a²+b²=c² when a, b, and c are whole numbers
  17. 35. a quadrilateral with 2 pairs of parallel sides
  18. 37. if two sides and the angle that they meet at are proportional the triangles are similar
  19. 38. adjacent/hypothenuse
  20. 39. a quadrilateral with 2 pairs of parallel sides and 4 right angles
  21. 40. √xy, the square root of two values
  22. 41. a chord that goes through the center of the circle
  23. 43. if all sides of triangles are proportional then they are similar
Down
  1. 2. the opposite of the cosine function to find the measure of an angle
  2. 3. if two angles are the same then the triangles are similar
  3. 6. an angle that is outside of the polygon
  4. 8. √xy but when x=y
  5. 9. a²=b²+c²-2bc cos(A); interchangable between a, b, and c
  6. 11. a quadrilateral with 2 pairs of parallel sides and all sides congruent
  7. 13. the opposite of the tangent function to find the measure of an angle
  8. 14. polygons that have the same shape but not always same size
  9. 16. all the points equidistant from the same point
  10. 17. a transformation that changes the size of the shape with a scale factor
  11. 19. a segment in a triangle with endpoints consisting of the midpoints of two sides
  12. 21. 3.1415926535897932384626433...
  13. 22. perimeter of a circle
  14. 25. circles that have the same center but have different radii
  15. 26. the relation between the sines of angles and their opposite sides
  16. 27. opposite/adjacent
  17. 32. 360 of these make up a circle
  18. 34. the angle that is formed by the observer's line of sight (looking down) and a horizontal line
  19. 36. an arc that is greater than 180 degrees
  20. 42. segment in a circle with endpoint on the edge and on the center