Slopes ofPerpendicularLinesTheorem(x1+x2/2,y1+y2/2)If x = y,and y = z,then x = z.If two lines are cut bya transversal and theconsecutive exteriorangles aresupplementary, thenthe two lines areparallelA mark thatmodels/indicatesan exactposition andlocation in aspacePlaneParallelPostulateDivision ofsomething intotwo equal orcongruent partsby a bisectorTwo or more linesthat go in the samedirections stayingthe same distanceapart. In addition,they neverintersect!ReflexivePropertyAny ray, segment, orline that intersects asegment at itsmidpoint. It divides asegment into twoequal parts at itsmidpoint√(x2−x1)^2+(y2−y1)^2IdentityPropertyof DivisionWhen two parallellines are cut by atransversal resultingin correspondingangles making themcongruentCoordinatePlanePart of aline thathas 2endpointsIf a = b, b =a; you canflip the sidesof anequation.If a=b,thenac=bcA part of a line thatstarts from onepoint and extendsin one direction foran infinite amountof timeLines thatintersectat a rightangleIf two lines areperpendicularto the sameline, then theyare parallelAlternateExteriorAnglesConverseAlternateInteriorAnglesTheoremIf the correspondingangles formed by twolines and atransversal arecongruent, then thelines are parallel.Slopes ofPerpendicularLinesTheorem(x1+x2/2,y1+y2/2)If x = y,and y = z,then x = z.If two lines are cut bya transversal and theconsecutive exteriorangles aresupplementary, thenthe two lines areparallelA mark thatmodels/indicatesan exactposition andlocation in aspacePlaneParallelPostulateDivision ofsomething intotwo equal orcongruent partsby a bisectorTwo or more linesthat go in the samedirections stayingthe same distanceapart. In addition,they neverintersect!ReflexivePropertyAny ray, segment, orline that intersects asegment at itsmidpoint. It divides asegment into twoequal parts at itsmidpoint√(x2−x1)^2+(y2−y1)^2IdentityPropertyof DivisionWhen two parallellines are cut by atransversal resultingin correspondingangles making themcongruentCoordinatePlanePart of aline thathas 2endpointsIf a = b, b =a; you canflip the sidesof anequation.If a=b,thenac=bcA part of a line thatstarts from onepoint and extendsin one direction foran infinite amountof timeLines thatintersectat a rightangleIf two lines areperpendicularto the sameline, then theyare parallelAlternateExteriorAnglesConverseAlternateInteriorAnglesTheoremIf the correspondingangles formed by twolines and atransversal arecongruent, then thelines are parallel.

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