A part of a line thatstarts fromone point andextends in onedirectionfor an infiniteamount of timeDivision ofsomething intotwo equal orcongruent partsby a bisectorIf x = y,and y = z,then x = z.Two or more linesthat go in the samedirections stayingthe same distanceapart. In addition,they neverintersect!IntersectingLinesPart of aline thathas 2endpointsCoordinatePlaneIf a = b, b =a; you canflip the sidesof anequationA mark thatmodels/indicatesan exactposition andlocation in aspace(x1+x2/2,y1+y2/2)IdentityPropertyof DivisionSubstitutionProp/POEIf two lines are cut bya transversal and theconsecutive exteriorangles aresupplementary, thenthe two lines areparallel√(x2−x1)^2+(y2−y1)^2PlaneParallelPostulateIf a=b,thenac=bcReflexivePropertySlopes ofPerpendicularLinesTheoremIf two lines areperpendicularto the sameline, then theyare parallelAny ray, segment, orline that intersects asegmentat its midpoint. Itdivides a segmentinto two equal partsat its midpointWhen two parallellinesare cut by atransversalresulting incorresponding anglesmaking themcongruentIf the correspondingangles formed by twolinesand a transversalare congruent, thenthe lines are parallel.AlternateInteriorAnglesTheoremA part of a line thatstarts fromone point andextends in onedirectionfor an infiniteamount of timeDivision ofsomething intotwo equal orcongruent partsby a bisectorIf x = y,and y = z,then x = z.Two or more linesthat go in the samedirections stayingthe same distanceapart. In addition,they neverintersect!IntersectingLinesPart of aline thathas 2endpointsCoordinatePlaneIf a = b, b =a; you canflip the sidesof anequationA mark thatmodels/indicatesan exactposition andlocation in aspace(x1+x2/2,y1+y2/2)IdentityPropertyof DivisionSubstitutionProp/POEIf two lines are cut bya transversal and theconsecutive exteriorangles aresupplementary, thenthe two lines areparallel√(x2−x1)^2+(y2−y1)^2PlaneParallelPostulateIf a=b,thenac=bcReflexivePropertySlopes ofPerpendicularLinesTheoremIf two lines areperpendicularto the sameline, then theyare parallelAny ray, segment, orline that intersects asegmentat its midpoint. Itdivides a segmentinto two equal partsat its midpointWhen two parallellinesare cut by atransversalresulting incorresponding anglesmaking themcongruentIf the correspondingangles formed by twolinesand a transversalare congruent, thenthe lines are parallel.AlternateInteriorAnglesTheorem

Geometry Bingo - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. A part of a line that starts from one point and extends in one direction for an infinite amount of time
  2. Division of something into two equal or congruent parts by a bisector
  3. If x = y, and y = z, then x = z.
  4. Two or more lines that go in the same directions staying the same distance apart. In addition, they never intersect!
  5. Intersecting Lines
  6. Part of a line that has 2 endpoints
  7. Coordinate Plane
  8. If a = b, b = a; you can flip the sides of an equation
  9. A mark that models/indicates an exact position and location in a space
  10. (x1+x2/2, y1+y2/2)
  11. Identity Property of Division
  12. Substitution Prop/POE
  13. If two lines are cut by a transversal and the consecutive exterior angles are supplementary, then the two lines are parallel
  14. √(x2−x1)^2+(y2−y1)^2
  15. Plane
  16. Parallel Postulate
  17. If a=b, then ac=bc
  18. Reflexive Property
  19. Slopes of Perpendicular Lines Theorem
  20. If two lines are perpendicular to the same line, then they are parallel
  21. Any ray, segment, or line that intersects a segment at its midpoint. It divides a segment into two equal parts at its midpoint
  22. When two parallel lines are cut by a transversal resulting in corresponding angles making them congruent
  23. If the corresponding angles formed by two lines and a transversal are congruent, then the lines are parallel.
  24. Alternate Interior Angles Theorem