Honors Geometry Vocab

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Across
  1. 3. a figure can be folded on a line of symmetry where both halves of the figure will match or line up with each other exactly
  2. 5. formed by two radii of a central angle and the arc between their endpoints on the circle
  3. 9. a midsegment between two sides of a triangle is half the length of and parallel to the third side of the triangle
  4. 10. if x=y, then y can be substituted in for x in any expression
  5. 12. when the three sides of a right triangle (a, b, and c) are positive integers
  6. 13. a line segment that has both endpoints on a circle
  7. 15. speaking about an arc using degrees
  8. 17. means to divide into two equal parts
  9. 22. the smaller arc
  10. 23. if x=y and y=z, then x=z
  11. 25. (U) -the event in which the first event or the second event (or both) occur
  12. 26. two lines that intersect outside the circle and form an angle
  13. 27. an angle that adds up to 180 degrees
  14. 31. the larger arc
  15. 33. a segment that connects the midpoints of any two sides of a triangle; every triangle has three midsegments
  16. 34. a proof that lists statements and reasons in a linear order, first to last, in columns
  17. 35. a rigid transformation that involves flipping a figure over the line of reflection
  18. 37. when the outcome of one event does not influence the outcome of the other
  19. 38. (n)-the event in which both the first event and the second event occur
  20. 39. how far it is from one point to another as you travel along an arc
  21. 42. uses branches to find the probability of events occurring; can be used even if there are more than two probabilistic situations
  22. 43. means "at right angles" a line meeting another at a right angle
  23. 44. a line segment that goes from one corner to another, but is not an edge
  24. 45. a rectangle format that organizes data to examine the relationship between two categorical variables
Down
  1. 1. set of points a fixed distance from a center and is defined by a central angle
  2. 2. the study of geometry on a coordinate grid
  3. 3. a rigid transformation that involves turning an entire figure about a fixed point
  4. 4. lie in the same plane and never intersect, same steepness/grow at the same rate, parallel lines have the same slope
  5. 6. uses a rectangle format to find the probability of two situations occurring
  6. 7. two lines that intersect on the outside of a circle and the lengths are equal
  7. 8. a figure can be rotated a certain degree about the center and will appear the same
  8. 11. when you are calculating a probability, but have been given additional information about an event that has already occured
  9. 14. a line that divides a line segment into two equal parts, it also makes a right angle with the line segment
  10. 16. an angle that adds up to 90 degrees
  11. 18. the measure of any side or angle is equal to itself
  12. 19. the sum of the three angles in any triangle is 180 degrees
  13. 20. in an isosceles triangle, the angles opposite the congruent sides are congruent
  14. 21. a rigid transformation that involved sliding a figure to a new location
  15. 24. an angle in a circle with its vertex on the circle
  16. 28. the distance around a 2-dimensional object's exterior (outside)
  17. 29. (Disjoint)- events that can never happen at the same time
  18. 30. lines that intersect at a right angle. Perpendicular lines have opposite reciprocal slopes
  19. 32. all the outcomes in the sample space that are not in the original event
  20. 36. an angle in a circle with its vertex at the center of the circle
  21. 40. the number of square units needed to fill up a region on a flat surface
  22. 41. a point on a line segment that divides it into two equal parts. The halfway point of a line segment