| 1. | It has 3120 faces : 2400 being triangles and 720 being decagons.
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| 2. | Decagon was founded in 1983 by Dr . Gaylon Campbell.
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| 3. | Six of these are the equatorial decagons to a pair of opposite vertices.
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| 4. | Built as an elongated decagon, the church had a lighter and graceful look.
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| 5. | Neighboring decagons must be allowed, however, to share some atoms with each other.
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| 6. | The wire frame figure of the 600-cell consists of 72 flat regular decagons.
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| 7. | They are precisely the six decagons which form the wire frame figure of the icosidodecahedron.
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| 8. | A polygon with ten sides is a decagon, and 10 is a decagonal number.
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| 9. | Decagon is headquartered in Pullman, Washington.
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| 10. | It has 92 faces : 20 equilateral triangles, 60 isosceles triangles, and 12 decagons.
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