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Definition
| Is an exact loction. A point is named by a capital letter. |
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| Is a straight path that exends without end on opposite directions. A line is named by two points on the line. |
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| A flat surface that exends without end in all directions. A plane is named by three points on the plane that are not on the same line. |
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| Is made of two endpoints and all the points between the endpoints. A line segment is named by its endpoints. |
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| Has one endpoint. From the endpoint,the ray extends without end in one direction only. A ray is named by its endpoint first followed by another point on the ray. |
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| Is formed by two rays with a common endpoint. Angles are named by the two rays using the common endpoint in the middle of the name. |
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| The common endpoint of two rays. The middle point in the name should always b vertex. |
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Definition
| Measures less than 90 degrees. |
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| Measures exactly 90 degrees. |
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| Measures more than 90 degrees, but less than 180 degrees. |
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Definition
| Measures exactly 180 degrees. |
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Definition
| Tool use to measure angles. |
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