| George Albert Wentworth - Algebra - 1888 - 494 pages
...respectively, are melted and formed into a single circular plate 1 inch thick. Find its diameter, having given **that the area of a circle varies as the square of its diameter.** CHAPTER XVI. * •PROGRESSIONS. 216. A succession of numbers that proceed according to some fixed law... | |
| Webster Wells - Algebra - 1889 - 426 pages
...are melted and formed into a single circular plate one inch thick. Find its diameter, having given **that the area of a circle varies as the square of its diameter.** 14. Three spheres of lead whose diameters are 3, 4, and 5 inches, respectively, are melted and formed... | |
| Sir William Slingo, Arthur Brooker - Electric engineering - 1890 - 631 pages
...section is a circle, and it becomes necessary to understand the method of comparing the areas of circles. **The area of a circle varies as the square of its diameter** ; for example, if we have two circles, one having a diameter of one-tenth of an inch and the other... | |
| Webster Wells - Algebra - 1890 - 577 pages
...If their sum is equal to 7 when x = 2, and to — 13 when x = — 3, what are the quantities ? 11. **The area of a circle varies as the square of its diameter.** If the area of a circle whose diameter is 2\ is what will be the diameter of a circle whose area is... | |
| George Albert Wentworth - Algebra - 1891 - 521 pages
...respectively, are melted and formed into a single circular plate 1 inch thick. Find its diameter, having given **that the area of a circle varies as the square of its diameter.** 18. The volume of a pyramid varies jointly as the area of its base and its altitude. A pyramid, the... | |
| Electric engineering - 1891
...section is a circle, and it becomes necessary to understand the method of comparing the areas of circles. **The area of a circle varies as the square of its diameter** ; for example, if we have two circles, one having a diameter of one-tenth of an inch and the other... | |
| Fred John Brockway - Physics - 1892 - 323 pages
...linear magnification, and the superficial or whole measure of area is the square of the linear, for **the area of a circle varies as the square of its diameter.** If an object is magnified 40 diameters, its superficial magnification is 1600. In a compound microscope... | |
| Scoby McCurdy - Algebra - 1894 - 173 pages
...is 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... | |
| Charles Smith - Algebra - 1894 - 584 pages
...and a body falls through 144 feet in three seconds. How far does it fall in two seconds ? 12. Given **that the area of a circle varies as the square of its** radius, show that a circle of 5 feet radius is equal to the sum of a circle of 3 feet radius and another... | |
| Sir William Slingo, Arthur Brooker - Electric engineering - 1895 - 753 pages
...section is a circle, and it becomes necessary to understand the method of comparing the areas of circles. **The area of a circle varies as the square of its diameter** : for example, 1 ' Conducting power Name of Metal at o° C. Silver = 100 Percentage fall of conducting... | |
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