Geometry Vocabulary Crossword

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Across
  1. 1. A continuous portion of a circle
  2. 5. The act of changing in form or shape or appearance
  3. 6. A mathematical equation
  4. 8. A triangle with one angle equal to 90 degrees
  5. 9. A triangle with all three angles congruent
  6. 12. A tool to measure the length of something
  7. 13. Either of two equal and opposite angles formed by the intersection of two straight lines
  8. 14. Ratio of the side opposite of an angle to the side adjacent to the angle which is not the hypotenuse
  9. 17. Ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
  10. 18. A tool to measure the degree of an angle
  11. 19. A straight line that intersects a curve at two or more points
  12. 22. Extending or lying across
  13. 24. A shape with many sides
  14. 25. The space between two points
  15. 27. A polygon with four equal sides and four right angles
  16. 30. Ratio of the adjacent side to the hypotenuse of a right-angled triangle
  17. 32. Corresponding in character or kind
  18. 33. A shape with no sides
  19. 34. A point equidistant from the ends of a line or the extremities of a figure
  20. 37. The angle formed in the interior of a circle when two chords intersect on the circle
  21. 41. a^2+b^2=c^2
  22. 44. Being everywhere equidistant and not intersecting
  23. 45. The extent of a 2-dimensional surface enclosed within a boundary
  24. 46. Up and down on a graph
  25. 47. A combination of three or more notes that blend harmoniously
  26. 48. A triangle with two equal sides
Down
  1. 2. Two angles whose sum is a right angle
  2. 3. Exactly vertical or upright.
  3. 4. The inner of the two angles formed where two sides of a polygon come together
  4. 7. A three-sided polygon
  5. 10. An angle less than 90 degrees
  6. 11. A line enclosing a plane area
  7. 15. The supplement of an interior angle of a polygon
  8. 16. A point at which a given tangent line meets a circle
  9. 20. The total space taken up by a flat surface or shape of an object
  10. 21. Half of a straight line going through the center of a circle
  11. 23. The length of a straight line through the center of a circle
  12. 26. A line that touches a curve at only one point
  13. 27. A particular aspect of life or activity
  14. 28. A triangle with all three sides congruent
  15. 29. The longest side of a triangle
  16. 31. The distance that runs through the curved line of the circle making up the arc
  17. 35. The length of the outside of a circle
  18. 36. The angle formed in the center of a circle when two chords intersect on the circle
  19. 38. The middle of a circle
  20. 39. A tool to draw and measure angles or circles
  21. 40. A triangle with all of its angles equaling 180
  22. 42. A triangle with no sides of equal length
  23. 43. Left and right on a graph