 | Chapman Valve Manufacturing Company - Hydrants - 1888 - 260 pages
...circle contains a greater area than any plane figure, bounded by an equal perimeter or outline. The areas of circles are to each other as the squares of their diameters. Any circle whose diameter is double that of another contains four times the area of the other. Area... | |
 | Stephen Roper - Fire engines - 1889 - 422 pages
...1,440,000, gives the work in workmandays. MENSURATION OF THE CIRCLE, CYLINDER, SPHERE, ETC. 1. The areas of circles are to each other as the squares of their diameters. 2. The diameter of a circle being 1, its circumference equals 3.1416. 3. The diameter of a circle is... | |
 | Thomas Newbigging - Gas manufacture and works - 1889 - 602 pages
...Super Royal Royal . . . Medium . Demy EPITOME OF MENSURATION. Of the Circle, Cylinder, and Sphert. The areas of circles are to each other as the squares of their diameters. The diameter of a circle being 1, its circumference equals 8-1416. The diameter of a circle multiplied... | |
 | Walter P. Butler - Irrigation - 1892 - 270 pages
..." circumference X .07958. " = Vz diameter X Yz circumference. " = square of radius X 3.1416. .i _1 areas of circles are to each other as the squares of their ~~ ( diameters. 153 MERSURATION, continued. Doubling the diameter of a circle increases the area 4 times. e= * »ide... | |
 | William Barnet Le Van - Faucets - 1892 - 178 pages
...breadth very considerable in proportion to the diameter of the orifice closed by the valve; and since the areas of circles are to each other as the squares of their diameters, the area of the circle circumscribed by the outer border of the valve seat is materially larger than... | |
 | Fred John Brockway - 1892 - 392 pages
...light, and AB at double this disFIG. 54. tance. The diameter of AB is twice that of CD, and the surfaces of circles are to each other as the squares of their diameters. AB has four times the area of CD — four times as large for twice the distance — or the intensity... | |
 | Henry B. Maglathlin - 1894 - 370 pages
...surface, when the first hax ground off his portion, there will remain J of that surface. Tiien, since the areas of circles are to each other as the squares of their diameters (Art. 431), The whole stone : part remaining :: square of diameter of the whole stone : square of diameter... | |
 | Municipal engineering - 1894 - 518 pages
...inches and 6 inches. Or, AD=,/122+6a+82+4J=16.1245 inches. This is founded on the theorem that the area of circles are to each other as the squares of their diameters. FR Lockling, CE Hannibal, Mo., Sept. 3, 1894. THE WATER SUPPLY OF A NEBRASKA CITY. To the Editor of... | |
 | William Kent - Engineering - 1895 - 1234 pages
...-^. 7854 ;=~; Л = ; =0.«1881С; :=2V; =1.12838*^"; Л = £; = 0.159155C; = V '-; = 0.504189 »'л. Areas of circles are to each other as the squares of their diameters. To find the length of an arc or a. circle : BtruB 1. As 360 is to the number of decrees in iliu arc,... | |
 | Photography - 1895 - 644 pages
...light admitted through a lens varies as the area of the circular aperture or diaphragm, and as the areas of circles are to each other as the squares of their diameters, and as the diameters of diaphragms may be, and are expressed in fractions of the focal length, therefore... | |
| |
The areas of circles are to each other as the squares of their diameters. 
