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Concave Sign Video

Upload On Mon Aug 20 2012 by ASL STEM

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Definition

Of a surface, curving inwards, or away from the eye. For example, a bowl appears concave when viewed from above. In geometry, a concave polygon is one that has an interior angle greater than 180 degree.

Source: The Hutchinson Unabridged Encyclopedia with Atlas and Weather guide. Abington: Helicon, 2010. Credo Reference. Web.
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