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Definition
| The perpendicular segment connecting either two parallel lines or a vertex to its opposite side |
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| A segment that is drawn from the center of a regular polygon perpendicular to a side of the polygon |
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| The number of square units contained in the interior of a figure |
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| This is any side of a parallelogram. In a trapezoid, it is either of the parallel sides. In a triangle, it is the side the altitue is drawn to. |
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Definition
| A polygon for which there is a line containing a side of the polygon and a point in the interior of the polygon |
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Definition
| A polygon for which there is no line that contains both a side of the polygon and a point in the interior of the polygon |
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| The length of the altitude of a figure |
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Definition
| A figure in a plane that meets the following conditions: It is a closed figure formed by three or more coplanar segments, sides that have a common endpoint are noncollinear and each side intersects exactly two other sides but only at their endpoints. |
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Definition
| This is what a polygon is called when all angles are congruent and all sides are congruent |
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