 | Anthony Nesbit - Surveying - 1824 - 476 pages
...feeding all round, May not graze less or more than an acre of ground ? Ann. 39.25068 yards. PROBLEM XVI. To find the area of a sector of a circle. RULE I. Multiply the length of the arc by the radius of the sector, and half the product will be the area.... | |
 | Thomas Hornby (land surveyor.) - Surveying - 1827 - 318 pages
...difference of the diameters. - 200000 .7854 200000 1.570800000 4 • 11.3280 Ans. IA. 2ft. Hp. PROBLEM 11. To find the Area of a Sector of a Circle. RULE I. Multiply the radius of the circle by half the arc of the sector, and the product will be the area.... | |
 | Alexander Ingram - Mathematics - 1830 - 458 pages
...of a circle, of which the circumference is 178 inchrs, ADS. 1 yard 8 feet 73 J, inches. PROB. XXI. To find the area of a sector of a circle. RULE I. If the length of the arc be known, multiply ball the arc by the radius. RULE II. If the angle of the... | |
 | Commissioners of National Education in Ireland - Measurement - 1837 - 290 pages
...circumference of a circle equal in area to a square whose side is 300 ? Ans. 1063-47228. PROBLEM XXVII. To find the area of a sector of a circle. RULE I. Multiply half the length of the arc by the radiusof the circle, and the product is the area of the... | |
 | Scottish school-book assoc - 1845 - 444 pages
...? Ans. 530-9304. done by both methods given in Rule II.; as also the seventh and eighth. PROBLEM X. To find the area of a sector of a circle. RULE I. Multiply half the length of the arc of the sector by the radios of the circle, the product Trill be... | |
 | J. M. Scribner - Mechanical engineering - 1849 - 286 pages
...the sruare described within acircle is precisely half of the square described without it. PROBLEM VI. To find the Area of a Sector of a Circle. Rule. — I. Find the length of the arc by problem vii. 2. Multiply the length of the arc thus found, by half the... | |
 | Charles Guilford Burnham - 1850 - 350 pages
...an arc of 17° 50', radius 178 miles ? Ans. 55 miles, 3 furlongs, 8 poles, 4£ yards. Art. 280. — To find the area of a sector of a circle. RULE. I. If the length of the arc be known, multiply half the arc oy the radius, or the arc by half the radius.... | |
 | Alexander Ingram - 1851 - 202 pages
...circle, of which the circumference is 178 inches. Ans. 2521-33 in. = 1 yd. 8 ft. 73g in. PROB. XXI. To find the area of a sector of a circle. RULE I. If the length of the arc be known, multiply half the arc by the radius. RULE II. If the angle of the... | |
 | Elias Loomis - Trigonometry - 1855 - 192 pages
...3. What is the area of a circle whose radius is 125 yards ? Ans., 49087.38 yards. PROBLEM X. (99.) To find the area of a sector of a circle. RULE I. Multiply the arc of the sector by half its radius. See Geometry, Prop. 12, Cor., B. VI. RULE II. As... | |
 | Charles Guilford Burnham - Arithmetic - 1857 - 328 pages
...an arc of 17° 50', radius 178 miles ? Ans. 55 miles, 3 furlongs, 8 poles, 4J yards. Art. 280. — To find the area of a sector of a circle. RULE. I. If the length of the arc be known, multiply half the arc oy the radius, or the arc by half the radius.... | |
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To find the area of a sector of a circle. RULE I. — Multiply the radius by half the arc of the sector for the area. 
