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Cards In This Set
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Congruent
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Same shape and size
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Line of symmetry
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Divides a figure into 2 congruent parts. If you fold the figure along its line of symmetry the parts match
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Hatch marks
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Are used to mark up equal sides and equal angles on a figure
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Equilateral triangle
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These triangles are congruent. They have 3 equal sides, 3 equal angles and 3 lines of symmetry.
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Isosceles triangle
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2 equal sides, 2 equal angles and 1 line of symmetry
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Scalene triangle
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No equal sides, no equal angles and no lines of symmetry
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Right angle
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Two lines that meet in a square corner make a 90 angle
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Parallel
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Two lines that are always the same distance apart
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Quadrilateral
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A four sided figure
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Square
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 4 congruent sides, 2 pairs of parallel sides, 4 right angles, 4 lines of reflective symmetry |
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Rectangle
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 2 pairs of congruent opposite sides, 2 pairs of parallel sides, 4 right angles, 2 lines of reflective symmetry |
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Parallelogram
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 2 pairs of congruent opposite sides, 2 pairs of parallel sides, 2 pairs of congruent opposite angles, no line of reflective symmetry |
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Rhombus
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 4 congruent sides, 2 pairs of parallel sides, 2 pairs of congruent opposite angles, 2 lines of reflective symmetry |
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Trapezoid
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 1 pair of parallel sides (only the special isosceles trapezoid have a pair of congruent opposite sides) |
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Kite
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 2 pairs of congruent adjacent sides, 1 pair of congruent opposite angles, 1 line of reflective symmetry |
