Honors Geometry Vocab

123456789101112131415161718192021222324252627282930313233343536373839404142434445
Across
  1. 2. an angle that adds up to 180 degrees
  2. 5. a segment that connects the midpoints of any two sides of a triangle; every triangle has three midsegments
  3. 6. two lines that intersect on the outside of a circle and the lengths are equal
  4. 9. the distance around a 2-dimensional object's exterior (outside)
  5. 10. the measure of any side or angle is equal to itself
  6. 11. two lines that intersect outside the circle and form an angle
  7. 15. the larger arc
  8. 18. (n)-the event in which both the first event and the second event occur
  9. 19. a line segment that goes from one corner to another, but is not an edge
  10. 20. a line segment that has both endpoints on a circle
  11. 22. if x=y and y=z, then x=z
  12. 23. (U) -the event in which the first event or the second event (or both) occur
  13. 24. in an isosceles triangle, the angles opposite the congruent sides are congruent
  14. 26. uses branches to find the probability of events occurring; can be used even if there are more than two probabilistic situations
  15. 28. speaking about an arc using degrees
  16. 29. the number of square units needed to fill up a region on a flat surface
  17. 31. the smaller arc
  18. 33. a proof that lists statements and reasons in a linear order, first to last, in columns
  19. 35. a figure can be rotated a certain degree about the center and will appear the same
  20. 36. a point on a line segment that divides it into two equal parts. The halfway point of a line segment
  21. 38. when the outcome of one event does not influence the outcome of the other
  22. 39. the sum of the three angles in any triangle is 180 degrees
  23. 40. an angle that adds up to 90 degrees
  24. 41. an angle in a circle with its vertex at the center of the circle
  25. 42. a rigid transformation that involves turning an entire figure about a fixed point
  26. 43. lie in the same plane and never intersect, same steepness/grow at the same rate, parallel lines have the same slope
  27. 44. a rigid transformation that involved sliding a figure to a new location
  28. 45. (Disjoint)- events that can never happen at the same time
Down
  1. 1. an angle in a circle with its vertex on the circle
  2. 3. means "at right angles" a line meeting another at a right angle
  3. 4. 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
  4. 7. if x=y, then y can be substituted in for x in any expression
  5. 8. lines that intersect at a right angle. Perpendicular lines have opposite reciprocal slopes
  6. 10. a rigid transformation that involves flipping a figure over the line of reflection
  7. 12. a midsegment between two sides of a triangle is half the length of and parallel to the third side of the triangle
  8. 13. when you are calculating a probability, but have been given additional information about an event that has already occured
  9. 14. a rectangle format that organizes data to examine the relationship between two categorical variables
  10. 16. set of points a fixed distance from a center and is defined by a central angle
  11. 17. all the outcomes in the sample space that are not in the original event
  12. 21. uses a rectangle format to find the probability of two situations occurring
  13. 25. how far it is from one point to another as you travel along an arc
  14. 27. means to divide into two equal parts
  15. 30. a line that divides a line segment into two equal parts, it also makes a right angle with the line segment
  16. 32. the study of geometry on a coordinate grid
  17. 34. when the three sides of a right triangle (a, b, and c) are positive integers
  18. 37. formed by two radii of a central angle and the arc between their endpoints on the circle