| Julius Lederer Neufeld - Algebra - 1920 - 424 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 - 254 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 - 400 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 - 368 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... | |
| Alfred Marshall - Business - 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 - 424 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... | |
| |