 | Thomas Tate - Geometry - 1855 - 296 pages
...ABPE and DCHF, rectangles. A frustum is a cone or pyramid having its top cut off. GENERAL RTJLE. To the sum of the areas of the two ends, add four times the area of the middle or mean section parallel to the ends, multiply this sum by the height, and one-sixth the... | |
 | Charles W. Hackley - Engineering - 1856 - 530 pages
...47 '75 gallons nearly, as before. PROBLEM VI. To find the solid content of the frustum of a pyramid. RULE. To the sum of the areas of the two ends add the square root of their product ; multiply this sum by the perpendicular height, and \ of the product... | |
 | James Stewart Eaton - Arithmetic - 1857 - 376 pages
...find the solidity of a rectangular prismoid, RULE. — To the sum of the areas of the two bases add 4 times the area of a section parallel to and equally distant from the two bases, and this latter sum multiplied by \ the altitude of the prismoid will give the solidity.... | |
 | Anthony Nesbit - Measurement - 1859 - 494 pages
...of a square pyramid, or a cylindroid ; to find its content in imperial gallons and bushels. KULE. To the sum of the areas of the two ends, add four times the area of the middle section parallel to them ; multiply this sum by the perpendicular depth, and \ of the product... | |
 | Charles Haslett, Charles William Hackley - Engineering - 1859 - 574 pages
...47-75 gallons nearly, as before. B PROBLEM VI. To find the solid content of the frustum of a pyramid. RULE. To the sum of the areas of the two ends add the square root of their product ; multiply this sum by the perpendicular height, and £ of the product... | |
 | Alfred Newsom Niblett - 1861 - 204 pages
...pflrnllelnfrrams. being parallel but not similar to eacli other; and its sides four plane trapezoids. RULES. To the sum of the areas of the two ends add four times...of a section parallel to and equally distant from bo.h ends; multiply this sum by the perpendicular height, and i of the product will be the solidity.... | |
 | Oliver Byrne - Engineering - 1863 - 600 pages
...inches. And 7140 -5- 1728 = 4-1319 solid feet, the content. To find the solidity of a prismoid. — To the sum of the areas of the two ends add four times...of a section parallel to and equally distant from both ends, and this last sum multiplied by J of the height will give the solidity. The length of the... | |
 | Alfred Hiley - 1871 - 184 pages
...A ft IVV RULES,— (1) To find the volume of a prismoid. Add together the areas of the two ends and four times the area of a section parallel to, and equally distant from, both ends ; multiply the sum- by tho perpendicular height, and one-sixth of the product is the volume.... | |
 | Ellwood Morris - Earthwork - 1872 - 206 pages
...means of initial prismoids, which, by a little development, can be made quite useful. Hutton's General Rule. " To the sum of the areas of the two ends add...of a section parallel to, and equally distant from, both ends, multiply the last sum by the hight, and J of the product will be the solidity (III.) In... | |
 | Ellwood Morris - Earthwork - 1872 - 206 pages
...means of initial prismoids, which, by a little development, can be made quite useful. Hutton's General Rule. " To the sum of the areas of the two ends add...of a section parallel to, and equally distant from, both ends, multiply the last sum by the bight, and i of the product will be the solidity, , (HI.) In... | |
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RULE.* To the sum of the areas of the two ends add four times the area of a section parallel to and equally distant from both ends, and this last sum multiplied by £ of the height will give the solidity. 
