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20 Cards in this Set
- Front
- Back
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equilateral
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a regular triangle
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obtuse
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angles that measure between 90 and 180 degrees
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angle bisector
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a ray that divides an angle into two angles of equal measure
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supplementary angles
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two angles that add up to 180
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vertical angles
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nonadjacent angles of two intersecting lines
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parallelogram
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a quadrilateral with opposite sides parallel and equal
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square
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a rectangle that is a rhombus
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right triangle
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a triangle with perpendicular legs
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square
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a regular quadrilateral
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isosceles
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a triangle with two equal legs
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adjacent angles
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two angles that share a common ray and endpoint
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congruent angles
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two angles that have the same measure
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linear pair
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two adjacent angles for which the noncommon rays form a straight line (adjacent and supplementary)
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trapezoid
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a quadrilateral with one set of parallel sides
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scalene
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a triangle with no sides congruent
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acute angles
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angles that measure between 0 and 90 degrees
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hypotenuse
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side opposite the right angles in a triangle
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congruent angles
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angles with equal measures
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angle bisector
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the ray common to two adjacent congruent angles
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perpendicular
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lines that intersect to form right angles
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