| 11. | These arrays are identical decagons that ordinarily cannot be fitted together to cover a surface without gaps.
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| 12. | A "'regular skew decagon "'is vertex-transitive with equal edge lengths.
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| 13. | The choir was closed with a semi-circular apse, which was encased within a half decagon.
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| 14. | Armaggeddon's line-up of products were unveiled at a launch event in Decagon Silver City.
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| 15. | A " truncated pentagon, t { 5 }, a quasiregular decagon alternating two types of edges.
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| 16. | On top of the decagon sat an oval dome with a lantern, supported from within by six arches.
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| 17. | The predictions of the overlapping decagon theory closely match electron-microscope images of the atoms in a real quasicrystal.
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| 18. | If all of the diagonals of a regular decagon are drawn, the resulting figure will have exactly 220 regions.
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| 19. | Decagon Devices was selected by the Wall Street Journal in 2008 as one of the " Top Small Workplaces ."
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| 20. | Currently, Decagon designs and manufactures several different types of instruments that are used in both agricultural and food science applications.
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