If a=b,thenac=bcIf two lines are cut bya transversal andthe consecutiveexteriorangles aresupplementary, thenthe two lines areparallel(x1+x2/2,y1+y2/2)Any ray, segment, orline that intersects asegmentat its midpoint. Itdivides a segmentinto two equal partsat its midpointAlternateExteriorAnglesConverseAlternateInteriorAnglesTheoremA part of a linethat starts fromone point andextends in onedirection for aninfinite amountof timeIf a = b, b =a; you canflip the sidesof anequation.Two or more lines thatgo in the samedirections stayingthe same distanceapart.In addition, they neverintersect!CoordinatePlaneIdentityPropertyof DivisionPart of aline thathas 2endpointsReflexivePropertyWhen two straightlines intersect at apointand form a linear pairof equal angles, theyare perpendicularWhen two parallellines arecut by a transversalresulting incorresponding anglesmakingthem congruentA mark thatmodels/indicatesan exactposition andlocation in aspaceDivision ofsomething intotwo equal orcongruent partsby a bisectorIf the correspondingangles formed by twolines and atransversal arecongruent, then thelines are parallel.SubstitutionProp/POEIf two lines areperpendicularto the sameline, then theyare parallelPlane√(x2−x1)^2+(y2−y1)^2Slopes ofPerpendicularLinesTheoremParallelPostulateIf a=b,thenac=bcIf two lines are cut bya transversal andthe consecutiveexteriorangles aresupplementary, thenthe two lines areparallel(x1+x2/2,y1+y2/2)Any ray, segment, orline that intersects asegmentat its midpoint. Itdivides a segmentinto two equal partsat its midpointAlternateExteriorAnglesConverseAlternateInteriorAnglesTheoremA part of a linethat starts fromone point andextends in onedirection for aninfinite amountof timeIf a = b, b =a; you canflip the sidesof anequation.Two or more lines thatgo in the samedirections stayingthe same distanceapart.In addition, they neverintersect!CoordinatePlaneIdentityPropertyof DivisionPart of aline thathas 2endpointsReflexivePropertyWhen two straightlines intersect at apointand form a linear pairof equal angles, theyare perpendicularWhen two parallellines arecut by a transversalresulting incorresponding anglesmakingthem congruentA mark thatmodels/indicatesan exactposition andlocation in aspaceDivision ofsomething intotwo equal orcongruent partsby a bisectorIf the correspondingangles formed by twolines and atransversal arecongruent, then thelines are parallel.SubstitutionProp/POEIf two lines areperpendicularto the sameline, then theyare parallelPlane√(x2−x1)^2+(y2−y1)^2Slopes ofPerpendicularLinesTheoremParallelPostulate

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