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| is the union of two line segments with a common endpoint called a vertex |
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Closed figure composed of exactly three sides
Angles will equal 180 degrees |
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| has two or three sides of equal length |
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has three sides of equal length
Each angle will be 60 degrees |
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| All three angles are less than 90 degrees |
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| has one angle that is greater than 90 degrees |
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| two line segments that form a right angle |
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closed figure composed of four line segments
Any four sided polygon |
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| Quadrilateral with two pairs of opposite parallel sides |
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| Quadrilateral with four right angles |
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| quadrilateral with exactly one pair of parallel sides |
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| Trapezoid with congruent sides |
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| Quadrilateral with two pars of equal adjacent sides |
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| Quadrilateral with four equal sides |
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| Quadrilateral with four equal sides and four right angles |
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| "equal sides" all sides have the same length |
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| "equal Angles" all angles have the same length |
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| Ling segments have the same length |
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| angles have the same measure |
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| A figure has reflectional symmetry if... |
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| there is a line that the figure can be "folded over" so that one half of the figure matches the other half perfectly |
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