| James Hayward - Geometry - 1829 - 218 pages
...plane DEF were inclined to the base, we should say — A truncated triangular prism is equivalent to three pyramids whose common base is the base of the prism, and whose heights are respectively equal to the distances of the opposite vertices from the base. 255. As all... | |
| Benjamin Peirce - Geometry - 1837 - 216 pages
...base of the truncated prism is the same as the base of the prism from which it is cut. 392. Theorem.. A truncated triangular prism is equivalent to the sum of three pyramids, which have for their common base the base of the prism, and for their vertices the three vertices of... | |
| Benjamin Peirce - Geometry - 1847 - 204 pages
...base of the truncated prism is the same as the base of the prism from which it is cut. 392. Theorem. A truncated triangular prism is equivalent to the sum of three pyramids, which have for their common base the base of the prism, and for their vertices the three vertices of... | |
| William Chauvenet - Mathematics - 1872 - 382 pages
...frustum the same expression as for that of the triangular frustum ; namely, TRUNCATED TRIANGULAR PRISM. PROPOSITION XXII.— THEOREM. 60. A truncated triangular...dividing the truncated prism into the three pyramids, E-AB C, EA CD and E- CDF. The first of these pyramids, E-ABC, has the base ABC and the vertex K The... | |
| William Chauvenet - Geometry - 1875 - 390 pages
...the same expression as for that of the triangular frustum ; namely, •TBUNCATED TRIANGULAR PRISli. PROPOSITION XXII.— THEOREM. 60. A truncated triangular...are the three vertices of the inclined section. Let ABG-DEF be a truncated triangular prism whose base is ABC and inclined section DEF. Pass the planes... | |
| Harvard University - 1876 - 554 pages
...section of a pyramid made by a plane parallel to the base is a polygon similar to the base. 6. Prove that a truncated triangular prism is equivalent to the sum of three pyramids, which have for their common base the base of tlie prism, and for their vertices the three vertices... | |
| George Albert Wentworth - Geometry - 1877 - 436 pages
...bases is equivalent to a mean proportional between their equivalents. PROPOSITION XXI. THEOREM. 581. A truncated triangular prism is equivalent to the...vertices are the three vertices of the inclined section. F Let AB CD EF be a truncated triangular prism, wiose base is ABC, and inclined section DE F. We are... | |
| George Albert Wentworth - Geometry - 1877 - 416 pages
...between their equivalents. PROPOSITION XXI. THEOREM. 581. A truncated triangular prism is equivalent fo the sum of three pyramids whose common base is the...vertices are the three vertices of the inclined section. D, Let AB CD EF be a truncated triangular prism whose base is ABC, and inclined section DE F. We are... | |
| George Albert Wentworth - Geometry - 1877 - 416 pages
...equivalents: PROPOSITION XXI. THEOREM. 581. A truncated triangular prism is equivalent to the »um of three pyramids whose common base is the base of...vertices are the three vertices of the inclined section. F Д Let AB CD EF be a truncated triangular prism whose base is ABC, and inclined section DE F. We... | |
| William Frothingham Bradbury - Geometry - 1877 - 262 pages
...pyramid C-ABE is equivalent to B-DEF. Therefore the truncated triangular prism ABC -DEF is equivalent to three pyramids whose common base is the base of the...vertices are the three vertices of the inclined section. 771 Cor. 1. If the truncated triangular prism is right, the three lateral edges will be the altitudes... | |
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