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

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