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20 Cards in this Set
- Front
- Back
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triangle
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a three sided figure
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quadrilateral
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a four sided figure
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pentagon
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a five sided figure
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hexagon
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a six sided figure
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octagon
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an eight sided figure
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right triangle
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a triangle with one right angle
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acute triangle
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a triangle with ALL acute angles
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obtuse triangle
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a triangle with ONE obtuse angle
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scalene triangle
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a triangle with NO congruent sides or angles
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isosceles triangle
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a triangle with TWO congruent sides and angles
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acute angle
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measures less than 90 degrees
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obtuse angle
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measures more than 90 degrees
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right angle
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measures 90 degrees
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straight angle
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measures 180 degrees and makes a straight line
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equilateral triangle
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a triangle with ALL congruent sides and angles
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parallelogram
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a quadrilateral with opposite sides congruent and parallel
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rhombus
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a parallelogram with ALL congruent sides
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square
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a parallelogram with ALL congruent sides and angles, all angles are 90 degrees
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rectangle
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a parallelogram with opposite sides congruent and parallel AND all 90 degree angles
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trapezoid
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a quadrilateral with ONE pair of opposite sides parallel
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