 | John Nicholson - Machinery - 1825 - 838 pages
...8 I 690872308 11 I 863-59038 78-50821 Prol. 1 2. To find the Area of the Sector of a Circle. Rule\. Multiply the radius, or half the diameter, by half...Rule 2. As 360 is to the degrees in the arc of the lector, «o it the whole area of the circle, to the area of the sector. Ex. What is the area of the... | |
 | John Nicholson (civil engineer.) - Great Britain - 1825 - 1008 pages
...Prob. 12. To find the Area of the Sector of a Circk. Rulel. Multiply the radius, or half the diauieter, by half the arc of the sector, for the area. Or take...The arc may be found by problem 10. Rule 2. As 360 i» to the degrees in the arc of the sector, to i» the whole area of the circle, to the area of the... | |
 | John Nicholson - Machinery - 1825 - 822 pages
...100 141 Mill) 1 98 .— .— _. 78-54 Prob. 12. To find the Area of the Sector of a Circle. Rule}. Multiply the radius, or half the diameter, by half...sector, for the area. Or take £ of the product of the diaineter and arc of the sector. Note. The arc may be found by problem 10. Rule 2. As 360 is to the... | |
 | Edinburgh encyclopaedia - 1830 - 856 pages
...area is .7854 x 144=113.0976 sq. feet PROBLEM X. To find the area of any sector of a circle. RULE -I. Multiply the radius, or half the diameter, by half the arc of the sector, and the product will be the area, as in the whole circle. RULE II. As 360° is to the degrees in the... | |
 | John Nicholson (Esq. Civil Engineer.) - Great Britain - 1831 - 432 pages
...: : 986.96044 7 11 6908.72308 863.59038 Prob. 12. To find the Area of the Sector of a Circle. Eule 1. Multiply the radius, or half the diameter, by half...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,... | |
 | Ireland commissioners of nat. educ - 1834 - 370 pages
...length of the arc by thé radius of the circle, and the product is the area of the sector, f RULE П. As 360 is to the de'grees in the arc of the sector, so is the area of the whole circle to the area of the sector, i 1 . Let A С B О be a sector less than... | |
 | Commissioners of National Education in Ireland - Measurement - 1837 - 290 pages
...length of the arc by the radiusof the circle, and the product is the area of the sector, f RULE II. 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 4 1. Let ACBO be a sector less than a semicircle... | |
 | Commissioners of National Education in Ireland - Measurement - 1837 - 284 pages
...length of the arc by the radius of the circle, and the product is the area of the sector, f RULE II. As 360 is to the degrees in the arc of the sector, go is the area of the whole circle to the area of the sector 4 1. Let ACBO be a sector less than a... | |
 | Joseph Gwilt - Architects - 1842 - 1114 pages
...difference. Therefore -7854 x 16 x 4= -7854 x 64 = 50-2656, the area required. 1224. PROBLEM XI. To ßnd the area of the sector of a circle. Rule 1. Multiply...diameter, by half the arc of the sec-tor for the area. Or multiply the whole diameter by the whole arc of the sector, and take J of the product. This rule is... | |
 | Charles Haynes Haswell - Engineering - 1844 - 298 pages
...fig. 13. RULE 1. — Multiply the length of the arc adb by half the length of the radius a a. RDLE 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,... | |
| |
MULTIPLY the radius, or half the diameter, by half the arc of the sector, for the area. Or, multiply the whole diameter by the whole arc of the sector, and take -f .of the product. 
