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10 Cards in this Set
- Front
- Back
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supplementary angles
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two angles whose measures have a sum of 180 degrees
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complementary angles
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two angles whose measures have a sum of 90 degrees
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vertical angles
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a pair of opposite angles formed when two lines meet at a point
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perpendicular lines
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two lines that intersect to form a right angle - the symbol is: ⊥
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regular polygon
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a polygon with all sides equal in length and all angles equal in measure
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quadrilateral
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a polygon with four sides
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trapezoid
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a quadrilateral with exactly one pair of parallel sides
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parallelogram
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a quadrilateral with both pairs of opposite sides parallel
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rhombus
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a parallelogram with four congruent sides
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line symmetry
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when a figure can be divided into two parts that are mirror images of each other
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