 | Julius Lederer Neufeld - Algebra - 1920 - 412 pages
...equivalent to the sum of two triangles whose bases are 10 and 6, and altitudes 3 and 9 respectively? 10. If the area of a circle varies as the square of its radius, find the radius of a circle equivalent to the sum of two circles whose radii are 5 and 12 respectively.... | |
 | Oswald Tower - Algebra - 1922 - 196 pages
...10 feet is 314.159 square feet. Find the area of a circle whose radius is 12 feet, from the law that the area of a circle varies as the square of its radius. 17. From the same law show that the area of a circle 2\ inches in diameter is equal to the sum of the... | |
 | Theodore Lindquist - Mathematics - 1920 - 258 pages
...(3) indicates that the area of a circle is proportional to the square of its radius. Or we say that the area of a circle varies as the square of its radius. Note that, when two quantities are proportional or when one quantity varies as the other, one quantity... | |
 | Edward Ira Edgerton, Perry Amherst Carpenter - Algebra - 1925 - 398 pages
...• • as a geometric progression and then find its value. 22. Prove that (1 - i)z = -~ 1 + i 23. The area of a circle varies as the square of its radius. When the radius is 6 feet the area is 113.0976 square feet. What 1s the area when the radius is 8 feet?... | |
 | Edith Totten - Emotions - 1925 - 88 pages
...time without causing an expansion of the chest seems possible. As Pearce and Hoover point out (11), the area of a circle varies as the square of its radius, and a slight increase, therefore, in the diameter of the bronchi and bronchioles would cause a relatively... | |
 | William Raymond Longley, Harry Brooks Marsh - Algebra - 1926 - 608 pages
...occur in the formulas of mensuration. Thus if A is the area of a circle of radius r, then A = irr2. The area of a circle varies as the square of its radius. If V is the volume of a sphere of radius r, then V = t тгг3. The volume of a sphere varies as the... | |
 | Edith Totten, Franklin Cressey Paschal, Louis Robert Sullivan - Ability - 1926 - 372 pages
...time without causing an expansion of the chest seems possible. As Pearce and Hoover point out (11), the area of a circle varies as the square of its radius, and a slight increase, therefore, in the diameter of the bronchi and bronchioles would cause a relatively... | |
 | Leonard Berger Benny - Engineering mathematics - 1927 - 512 pages
...hence the relation is Q - 7.2 + 3-2qz. When 3=4-5,. Q =7-2 +3-2 x (4-5)2 = 72. Exercises II. C. 1. The area of a circle varies as the square of its radius. It is found that the area of a circle of radius 2 ft. is 12-57 sq. ft. Kind the area of a circle of... | |
 | Alfred Marshall - 1927 - 908 pages
...till the returns are brought home: and this cost increases, though irregularly, with the distance. But the area of a circle varies as the square of its radius. Therefore improvements in the mechanism or the organization of transport, which increase the distance... | |
 | Alfred Marshall - Business & Economics - 2006 - 425 pages
...till the returns are brought home: and this cost increases, though irregularly, with the distance. But the area of a circle varies as the square of its radius. Therefore improvements in the mechanism or the organization of transport, which increase the distance... | |
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Given that the area of a circle varies as the square of its radius... 
