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| An angle with a measure less than 90 degrees. |
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| A ray that breaks an angle into two equal parts. |
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| Angles that have the same measure. |
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| Segments that have the same length. |
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| An "if...then" statement. |
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| The distance and direction a point is from the origin, shown in (x,y) form. |
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| Figures in the same plane. |
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| A counterexample of a statement is an example that proves the statement is false. |
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Definition
| An angle with a measure between 90 and 180 degrees |
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Definition
| Lines in the same plane that do not intersect. |
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Definition
| Planes that do not intersect. |
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Definition
| A ray, line, or segment that intersects a segment at it's midpoint to create two equal parts and a right angle. |
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Definition
| Lines that intersect to form right angles. |
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Definition
| A flat surface, like a piece of paper, that has no thickness. |
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Definition
| Part of a line consisting of one endpoint. |
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Definition
| An angle with a measurement of 90 degrees. |
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Definition
| A part of a line with two endpoints. |
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Definition
| Lines that are not parallel and not in the same plane. |
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Definition
| An angle with a measure of 180 degrees. |
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Term
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Definition
| Two angles that share a common "wall." |
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Term
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Definition
| Two angles that have measures that add up to 90 degrees. |
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Term
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Definition
| Two angles that have measures that add up to 180 degrees. |
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Definition
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Term
| Alternate Interior Angles |
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Definition
| A triangle with all sides equal |
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Definition
| Triangle with all angles equal |
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Definition
| A triangle with at least two sides equal. |
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