SupplementaryWhen 2anglessum to180°.Swoosh-SwooshIf tick-tick,then...Same-SideInteriorAnglesAngles on thesame side ofthe transversaland inside the2 lines.RightA trianglewith 1 rightangle and2 acute.ParallelLines in thesame planethat neverintersect.AlternateExteriorAnglesAngles on theopposite side ofthe transversaland outside the2 lines.AcuteA trianglewith 3acuteangles.VerticalAnglesNon-adjacentanglesformed byintersectinglines.LinearPair2 adjacent,supplementaryangles.OppositeSideWhen a sideis directlyacross froman angle, wecall it this.EquilateralA trianglewith 3congruentsides.TranslationAlsocalled a"slide".ExteriorAngleThe measure ofthis angle isfound by addingthe measures ofthe 2 non-adjinterior angles.EquiangularA trianglewith 3congruentangles.Tick-Tick-TickIf swoosh-swoosh-swoosh,then...TriangleA shapewith 3sides andangles.VertexA pointthat joins2 sides ofa triangle.SkewLines that arenot in the sameplane, are notparallel, andwill neverintersect.ObtuseA trianglewith 1obtuse angleand 2 acute.180°The interiorangles of atriangle addup to this.CorrespondingAnglesAngles thatlie in thesame spot or"match-up".ComplementaryWhen 2anglessum to90°.Swoosh-Swoosh-SwooshIf tick-tick-tick,then...CongruentWhen 2 ormore angleshave the samemeasure, theyare what?Tick-TickIf swoosh-swoosh,then...PerpendicularLines thatintersectat a rightangle.ScaleneA trianglewith nocongruentsides orangles.90°The 2 acuteangles of aright triangleadd up tothis.IsoscelesA trianglewith 2congruentsides andangles.SupplementaryWhen 2anglessum to180°.Swoosh-SwooshIf tick-tick,then...Same-SideInteriorAnglesAngles on thesame side ofthe transversaland inside the2 lines.RightA trianglewith 1 rightangle and2 acute.ParallelLines in thesame planethat neverintersect.AlternateExteriorAnglesAngles on theopposite side ofthe transversaland outside the2 lines.AcuteA trianglewith 3acuteangles.VerticalAnglesNon-adjacentanglesformed byintersectinglines.LinearPair2 adjacent,supplementaryangles.OppositeSideWhen a sideis directlyacross froman angle, wecall it this.EquilateralA trianglewith 3congruentsides.TranslationAlsocalled a"slide".ExteriorAngleThe measure ofthis angle isfound by addingthe measures ofthe 2 non-adjinterior angles.EquiangularA trianglewith 3congruentangles.Tick-Tick-TickIf swoosh-swoosh-swoosh,then...TriangleA shapewith 3sides andangles.VertexA pointthat joins2 sides ofa triangle.SkewLines that arenot in the sameplane, are notparallel, andwill neverintersect.ObtuseA trianglewith 1obtuse angleand 2 acute.180°The interiorangles of atriangle addup to this.CorrespondingAnglesAngles thatlie in thesame spot or"match-up".ComplementaryWhen 2anglessum to90°.Swoosh-Swoosh-SwooshIf tick-tick-tick,then...CongruentWhen 2 ormore angleshave the samemeasure, theyare what?Tick-TickIf swoosh-swoosh,then...PerpendicularLines thatintersectat a rightangle.ScaleneA trianglewith nocongruentsides orangles.90°The 2 acuteangles of aright triangleadd up tothis.IsoscelesA trianglewith 2congruentsides andangles.

Chapter 4 Elements of Geometry - 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. When 2 angles sum to 180°.
    Supplementary
  2. If tick-tick, then...
    Swoosh-Swoosh
  3. Angles on the same side of the transversal and inside the 2 lines.
    Same-Side Interior Angles
  4. A triangle with 1 right angle and 2 acute.
    Right
  5. Lines in the same plane that never intersect.
    Parallel
  6. Angles on the opposite side of the transversal and outside the 2 lines.
    Alternate Exterior Angles
  7. A triangle with 3 acute angles.
    Acute
  8. Non-adjacent angles formed by intersecting lines.
    Vertical Angles
  9. 2 adjacent, supplementary angles.
    Linear Pair
  10. When a side is directly across from an angle, we call it this.
    Opposite Side
  11. A triangle with 3 congruent sides.
    Equilateral
  12. Also called a "slide".
    Translation
  13. The measure of this angle is found by adding the measures of the 2 non-adj interior angles.
    Exterior Angle
  14. A triangle with 3 congruent angles.
    Equiangular
  15. If swoosh-swoosh-swoosh, then...
    Tick-Tick-Tick
  16. A shape with 3 sides and angles.
    Triangle
  17. A point that joins 2 sides of a triangle.
    Vertex
  18. Lines that are not in the same plane, are not parallel, and will never intersect.
    Skew
  19. A triangle with 1 obtuse angle and 2 acute.
    Obtuse
  20. The interior angles of a triangle add up to this.
    180°
  21. Angles that lie in the same spot or "match-up".
    Corresponding Angles
  22. When 2 angles sum to 90°.
    Complementary
  23. If tick-tick-tick, then...
    Swoosh-Swoosh-Swoosh
  24. When 2 or more angles have the same measure, they are what?
    Congruent
  25. If swoosh-swoosh, then...
    Tick-Tick
  26. Lines that intersect at a right angle.
    Perpendicular
  27. A triangle with no congruent sides or angles.
    Scalene
  28. The 2 acute angles of a right triangle add up to this.
    90°
  29. A triangle with 2 congruent sides and angles.
    Isosceles