| John Macneill - Earthwork - 1833 - 254 pages
...A' 2 + rA* + 2rAA'] -|r = Г(ft +rA') A' + (ft+ rA) A + 4 fft + r —— 1 -:—' | —r LL 4 16 = **area of each end, added to four times the middle area, and the sum multiplied by the length** divided by 6. DESCRIPTION OF THE TABLES. THE first series of Tables, from 1 to 22, are calculated to... | |
| Sir John Benjamin MacNeill - Earthwork - 1846 - 368 pages
...rh')h'+ (b+rh)h+2bh + 2bh'+ rh' 2 + rh*+ 2rhh']~ = \\b + rh') h' + (b + rh) h + i \b + r^f--] i±T] L = **area of each end, added to four times the middle area, and the sum multiplied by the length** divided by 6. .^j^^Uy/A^'j^O^/H^')^-^ /, , vM^ >JA'{iVft>^ Wi4 ' l "IT I r DESCRIPTION OF THE TABLES.... | |
| FREDERICK W. SIMMS - 1870
...which the saving of labour by the use of the Tables will be made apparent. Prismoidal Formula.—The **area of each end added to four times the middle area, and the sum multiplied by the length** divided by 6, will give the solid content. If the measures used in the calculation are yards, the result... | |
| United States. Army. Corps of Engineers - Military engineering - 1873
................. = £ - R 2 A 19. Sphere ................ = A - R" 20. Prismoid, or solid figure, similar **to that which is formed in excavations or embankments...middle area, and the sum multiplied by the length** divided by 6, or where b = the breadth at the bottom of the cutting ; h = the perpendicular depth of... | |
| William Henry Maxwell - Pavements - 1899 - 260 pages
...calculate theirrespective areas. The Prismoidal Formula is frequently used, and is as follows: " The **area of each end added to four times the middle area, and the sum multiplied ~by the length** divided by 6, mil give the solid content." Or— [Sum of areas of both ends + (middle areax4)Jx length.... | |
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