 | D. M. Knapen - 1849 - 300 sider
...the arc is given, to find the area, say : — As 360 degrees are to the number of degrees in the arc, so is the area of the whole circle to the area of the sector. When the number of degrees in the arc of the sector is given, to find the length of the arc, say :... | |
 | J. M. Scribner - 1849 - 286 sider
...the length ol the radius, and the product will be the ares. Or, as 360 degrees is to the number of degrees in the arc of the sector, so is the area of the cirle to the area of the sector. NOTE. If the dlameter of radius is not given, add the square of half... | |
 | Almon Ticknor - 1849 - 156 sider
...number of degrees contained in the are of the sector to the area; or, as 360° is to the number of degrees in the arc of the sector, so is the area of the circle to the area of the sector. 1. Required the area of the sector, the chord of half the arc being... | |
 | Charles Haynes Haswell - 1851 - 346 sider
...1. — Multiply the length of the arc adb by half the length of the radius a o. RULE 2. — As 360 is to the degrees in the arc of the sector, so is the area of the circle to the area of the sector. NOTE. — If the diameter or radius is not given, add the square... | |
 | Adrien Marie Legendre - 1852 - 436 sider
...the radius (B. v., P. 15, c). Or, 2. Compute the area of the whole circle: then say, as 360 degrees is to the degrees in the arc of the sector, so is...area of the whole circle to the area of the sector. Ex. 1. To find the area of a circular sector whose arc contains 18 degrees, the diameter of the circle... | |
 | Septimus Norris - 1852 - 356 sider
...length of the radius, ac ; the product will be the areaRULE 2- — As 360 degrees is to the number of degrees in the arc of the sector ; so is the area of the circle to the area of the sectorTo find the Area-of a Segment of a Circle, fig- 12RULE 1-— To the... | |
 | Ezra S. Winslow - 1853 - 264 sider
...of one of the sides of the sector, -—and the product- is the area of the sector. Or, — 2. As 360 is to the degrees in the arc of the sector, so is the area of the circle to the area of the sector. EXAMPLE. — The length of the arc, CE, of the sector CED, is found... | |
 | Lucius D. Gould - 1853 - 234 sider
...length of the radius; the product will be the area. Rule 2. — As 360 degrees is to the number of degrees in the arc of the sector, so is the area of the circle to the area of the sector. To find the Area of a Segment of a Circle. Rule. — To the chord... | |
 | Charles Davies - 1854 - 436 sider
...half the radius (BV, P. 15, c). Or, 2. Compute the area of the whole circle: then say, as 360 degrees is to the degrees in the arc of the sector, so is the area of tl1e whole circle to the area of tl1e sector. Ex. 1. To find the area of a circular sector whose arc... | |
 | Robert Stuart - 1854 - 1272 sider
...product of the diameter and arc of the sector. Note. The arc may be found by problem 10. Rule 2. As 360 is to the degrees in the arc of the sector, so is the •whole area of the circle to the area of the sector. Ex. What is the area of the sector CAB, the... | |
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As 360 is to the degrees in the arc of the sector, so is the area of the whole circle to the area of the sector. 
