Books Books Given that the area of a circle varies as the square of its radius... Complete School Algebra - Page 472
by Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1919 - 507 pages ## Elementary Algebra with a Table of Logarithms

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.... ## Exercise Book in Algebra: A Revision of McCurdy's Exercise Book in Algebra

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... ## Junior High School Mathematics Book 1-3 [and] 1 Book Course, Book 2

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?... ## Oxygen Consumption During Emotional Stimulation

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... ## Algebra

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... ## Comparative Psychology Monographs

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... ## Industry and Trade: A Study of Industrial Technique and Business Organization

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... 