| Septimus Norris - Locomotives - 1852 - 368 pages
...length of the arc, adb, by half the length of the radius, ac ; the product will be the areaRULE 2- — **As 360 degrees is to the number of degrees in the...; 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 chord, ab, of -the whole... | |
| Adrien Marie Legendre - Geometry - 1852 - 436 pages
...(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 the area of the** whole circle to the area of the sector. Ex. 1. To find the area of a circular sector whose arc contains... | |
| Lucius D. Gould - Carpentry - 1853 - 234 pages
...the length of the arc, by half the length of the radius; the product will be the area. Rule 2. — **As 360 degrees is to the number of degrees in the...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 of the whole arc, add the chord of... | |
| Ezra S. Winslow - Business mathematics - 1853 - 264 pages
...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 to be 32^ inches, and the radius,... | |
| Septimus Norris - Locomotives - 1854 - 334 pages
...length of the arc, ad I, by half the length of the radius, ac; the product be the area. RULE 2.— **As 360 degrees is to the number of degrees in the...the area of the circle to the area of the sector.** add the chord, ac, of half the arc and one-third of it more. Then multiply the sum by the versed sine,... | |
| Charles Davies - Geometry - 1854 - 436 pages
...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... | |
| Elias Loomis - Trigonometry - 1855 - 192 pages
...radius. See Geometry, Prop. 12, Cor., B. VI. RULE II. As 360 is to the number of degrees in the arc, **so is the area of the circle to the area of the sector.** This follows from Geometry, Prop. 14, Cor. 2, B. III. Ex. 1. What is the area of a sector whose arc... | |
| James Stewart Eaton - Arithmetic - 1857 - 376 pages
...area of a circular sector, RULE 1. — First fnd the area of the whole circle, and then sny, as 360° **is to the number of degrees in the arc of the sector,...is the area of the circle to the area of the sector** ; or, RULE 2. — First find the length of the arc of the sector, and then multiply this length by... | |
| Lucius D. Gould - 1857 - 492 pages
...the length of the arc, by half the 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** 9 f the circle to the area of the sector. To find thi Area of a Segment of a Circle. Rule.—To the... | |
| Benjamin Greenleaf - Arithmetic - 1858 - 458 pages
...circle. Multiply tlie length of the arc by half the. radius of the circle. Or, As 360° are to the **degrees in the arc of the sector, so is the area of the circle to the area of the sector. Ex. 1** . Required the area of a sector, of which the arc is 79 and the radius of the circle 47 inches. Ans.... | |
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