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33 Cards in this Set
- Front
- Back
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rhombus
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a quadralateral whose sides are all equal and have two sets of parallel sides
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rectangle
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a quadralateral that has two sets of parllel sides and whose angles are all equal
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square
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a quadralateral whose sides and angles are all equal and has two sets of parallel sides
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right angle
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an angle that is exactly 90 degrees
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acute angle
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an angle that is less than 90 degrees
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obtuse angle
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an angle tha tis more than 90 degrees
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midpoint of a segment
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a point that is halfway between the two endpoints of a segment
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angle bisector
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a ray cutting an angle exactly in half so that the angle is equal on either side of the ray
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parallel lines
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two or more lines that never intersect on one plane
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perpendicular liens
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two lines that intersect at a 90 degree angle
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pair of complementary angles
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two angles whose measures add up to 90 degrees
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pair of supplementary angles
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two angles whose measures add up to 180 degrees
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pair of vertical angles
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two non-adjacent angles that share a vertex and are formed by two intersecting lines
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linear pair of angles
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two angles that share a common line and have the same vertex, formed by two lines
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skew
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lines that don't meet and are on different planes
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diagnols of polygons
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a segment that connects two onon adjacent vertexes in a polygon
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equilateral polygon
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a polygon whose sides are all equal
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equiangular polygon
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a polygon whose angles are all equal
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regular polygon
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a polygon whose sides and angles are equal
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right triangle
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a triangle with one 90 degree angle
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acute triangle
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a triangle whose angles are all less than 90 degrees
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obtuse triangle
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a triangle with one angle more than 90 degrees
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scalene triangle
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a triangle with no equal sides
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isosceles triangle
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a triangle with two or more equal sides
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median of a triangle
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a segment coming form the vertex angle that divides the opposite side in half
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altitude of a triangle
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a segment connecting a vertex to the opposite side or the opposite side extended forming a 90 degree angle
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trapezoid
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a quadralateral witha pair of parallel sides
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kite
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a quadralateral with two pairs of equal sides adjacent to each other
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parallelogram
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a qudralateral with two pairs of non adjacent parallel lines
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collinear points
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two or more points on the same line
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coplanar points
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three or more points on the same plane
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space
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the set of all points
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congruent
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have the same measure
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