 | Noble Heath - 1855 - 468 pages
...pyramid ends in a point, called the vertex, or summit. To find the solidity of a pyramid or cone : Multiply the area of the base by one third of the perpendicular height. 2. What is the solidity of the cone in the preceding example ? Ans. 12810,22 — cubic feet. 3. Required... | |
 | Noble Heath - Arithmetic - 1856 - 472 pages
...pyramid ends in a point, called the vertex, or summit. To find the solidity of a pyramid or cone : Multiply the area of the base by one third of the perpendicular height. 2. What is the solidity of the cone in the preceding example? Ans. 12810,22— cubic feet. 3. Required... | |
 | Charles Guilford Burnham - Arithmetic - 1857 - 328 pages
...that can be hewn from it? Ans. 16.97-}- inches Art. 287. — To find the solidity of a pyramid, cr cone. RULE. Multiply the area of the base by one third of the heght, and the product will be the area. 1. What is the contents of a cone, whose height is 21 feet,... | |
 | Benjamin Greenleaf - Arithmetic - 1857 - 336 pages
...circumference at its base 12 feet. Ans. 300 square feet. ART. 357. To find the solidity of a pyramid and of a cone. RULE. — Multiply the area of the base by one third of its altitude, and the product will be its solidity. 1. The largest of the Egyptian pyramids is square... | |
 | Elias Loomis - Logarithms - 1859 - 372 pages
...circumference of its base 8 feet ? Ans., 65.093 square feet. PROBLEM IV. (122.) To find the solidity of a cone. RULE. Multiply the area of the base by one third of the altitude. See Geometry, Prop. 5, BX Ex. 1. What is the solidity of a cone whose altitude is 12 feet,... | |
 | Emerson Elbridge White - Arithmetic (Commercial), 1861 - 1861 - 348 pages
...circumference of the base ly half of the slant height, and to the product add the area of the base. (2.) To find the solidity of any pyramid or cone. RULE....Multiply the area of the base by one third of the altitude. (3.) To find the entire surface of a frustum of a right pyramid, or of a cone. RULE. —... | |
 | Benjamin Greenleaf - Arithmetic - 1861 - 338 pages
...12 feet. Ans. 400 yards. Ans. 300 square feet. ART. 357. To find the solidity of a pyramid and of a cone. RULE. — Multiply the area of the base by one third of its altitude, and (he product will be its solidity. 1. The largest of the Egyptian pyramids is square... | |
 | James Stewart Eaton - 1862 - 320 pages
...pyramid or cone is its perpendicular hight. 397. PROBLEM 8. To find the contents of a pyramid or of a cone : RULE. Multiply the area of the base by one third of the altitude. Ex. 1. What are the contents of a cone, whose base is 10 feet in diameter and whose altitude... | |
 | James Stewart Eaton - Arithmetic - 1866 - 328 pages
...pyramid or cone is its perpendicular hight. 397. PROBLEM 8. To find the contents of a pyramid or of a cone : RULE. Multiply the area of the base by one third of the altitude. Ex. 1. What are the contents of a cone, whose base is 10 feet in diameter and whose altitude... | |
 | Gerardus Beekman Docharty - Geometry - 1867 - 474 pages
...triangular bases 3, 4, and 5 feet respectively. Ans. 120 cubic feet. PROBLEM II. To find the volume of a pyramid or cone. RULE. Multiply the area of the base by one third of the altitude of the pyramid or cone, and the product will be the volume (Geom., B. VII., Prop. 10, Cor.... | |
| |
To find the solidity of a pyramid and of a cone. RULE. — Multiply the area of the base by one third of its altitude, and the product will be its solidity. 
