(x1+x2/2,y1+y2/2)When two straightlines intersect at apointand form a linear pairof equal angles, theyare perpendicularA mark thatmodels/indicatesan exactposition andlocation in aspaceA part of a linethat starts fromone point andextends in onedirection for aninfinite amountof timeIf two lines are cut bya transversal andthe consecutiveexteriorangles aresupplementary, thenthe two lines areparallelIdentityPropertyof DivisionIf a=b,thenac=bcAny ray, segment, orline that intersects asegmentat its midpoint. Itdivides a segmentinto two equal partsat its midpointCoordinatePlane√(x2−x1)^2+(y2−y1)^2Part of aline thathas 2endpointsWhen two parallellines arecut by a transversalresulting incorresponding anglesmakingthem congruentPlaneIf two lines areperpendicularto the sameline, then theyare parallelAlternateInteriorAnglesTheoremSubstitutionProp/POEReflexivePropertySlopes ofPerpendicularLinesTheoremIf the correspondingangles formed by twolines and atransversal arecongruent, then thelines are parallel.AlternateExteriorAnglesConverseTwo or more lines thatgo in the samedirections stayingthe same distanceapart.In addition, they neverintersect!Division ofsomething intotwo equal orcongruent partsby a bisectorParallelPostulateIf a = b, b =a; you canflip the sidesof anequation.(x1+x2/2,y1+y2/2)When two straightlines intersect at apointand form a linear pairof equal angles, theyare perpendicularA mark thatmodels/indicatesan exactposition andlocation in aspaceA part of a linethat starts fromone point andextends in onedirection for aninfinite amountof timeIf two lines are cut bya transversal andthe consecutiveexteriorangles aresupplementary, thenthe two lines areparallelIdentityPropertyof DivisionIf a=b,thenac=bcAny ray, segment, orline that intersects asegmentat its midpoint. Itdivides a segmentinto two equal partsat its midpointCoordinatePlane√(x2−x1)^2+(y2−y1)^2Part of aline thathas 2endpointsWhen two parallellines arecut by a transversalresulting incorresponding anglesmakingthem congruentPlaneIf two lines areperpendicularto the sameline, then theyare parallelAlternateInteriorAnglesTheoremSubstitutionProp/POEReflexivePropertySlopes ofPerpendicularLinesTheoremIf the correspondingangles formed by twolines and atransversal arecongruent, then thelines are parallel.AlternateExteriorAnglesConverseTwo or more lines thatgo in the samedirections stayingthe same distanceapart.In addition, they neverintersect!Division ofsomething intotwo equal orcongruent partsby a bisectorParallelPostulateIf a = b, b =a; you canflip the sidesof anequation.

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