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Angles that share sides or a vertex |
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A shape that has 3 straight sides and 3 angles that add up to 180 degrees. |
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a rectangle that has four congruent sides |
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A shape that has 4 parallel sides and 4 angles that are 90 degrees each. |
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A shape with an infinate amount of points that are all equidistant from a single point |
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A closed shape made of stright lines |
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A shape with all 2 parallel and 2 right angles |
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Exapmple: if A = B then B = A |
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Addition Property of Equality |
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Definition
Example: 2x - 3 + 3 = 5x +7 + 3 |
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Subtractiion Property of Equaltiy |
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Example: 2 - 2 = 3x + 3 - 2 |
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Multiplication Property of Equaltiy |
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Division Property of Equality |
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Definition
Example: 2x * 3 / 3 = 9 / 3 |
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