| NOUN | shape | external angle, exterior angle | the supplement of an interior angle of a polygon |
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| Meaning | The supplement of an interior angle of a polygon. | |
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| Synonym | exterior angle | |
| Narrower | hip | (architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof |
| Broader | angle | The space between two lines or planes that intersect |