| 11. | If the Washington Monument had regular faces, it would be an elongated square pyramid.
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| 12. | The square pyramid, with square base and four triangular outer surfaces, is a common version.
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| 13. | He finds the volume of rectangular prisms, pyramids, and the frustum of a square pyramid.
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| 14. | The elongated triangular pyramid can form a tessellation of space with square pyramids and / or octahedra.
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| 15. | Already this simple square pyramid shows that the symmetry-accumulated incidence matrices are no longer symmetrical.
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| 16. | The gyroelongated square pyramid is a square pyramid with a square antiprism connected to the square base.
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| 17. | The gyroelongated square pyramid is a square pyramid with a square antiprism connected to the square base.
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| 18. | This partitions the cube into 6 equal square pyramids of base area 1 and height 1 / 2.
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| 19. | A thatched roof mosque with a square pyramid or double pyramid mosque forms the centre of the village.
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| 20. | A two-seater weatherboard outhouse has a square pyramid roof of corrugated iron with a wood finial.
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