| Charles Davies - Geometry - 1850 - 216 pages
...circle when the chord and radius are given. RULE. I. Find the chard of half the arc. II. From eight **times the chord of half the arc, subtract the chord of the whole arc, and** divide the remainder by 3, and the quotient will be the length of the arc, nearly. EXAMPLES. 1. The... | |
| James Elliot - 1851
...XIII. Ans. 398 -. To find the Length of an Arc (BCE) approximately (without Tables). EULE. From eight **times the chord of half the arc subtract the chord of the whole arc, and** divide the remainder by 3. FORMULA. A 8c'-c Arc = -- c being the chord of the whole arc ; and c' that... | |
| Charles Davies - Geometry - 1886 - 324 pages
...of a circle when the chord and radius are givenRULE I Find the chord of half the, arcIT From eight **times the chord of half the arc, subtract the chord of the whole arc, and** divide the remainder by 3, and the quotient will be the length of the arc, nearlyEXAMPLES 1 The chord... | |
| Lucius D. Gould - Carpentry - 1853 - 136 pages
...the square of the circumference to the area. To find the Length of any Arc of a Circle. Rule 1. — **From 8 times the chord of half the arc, subtract the chord of the whole arc** ; one-third of the remainder will be the length of the arc nearly. Rule 2. — As 180 is to the number... | |
| Ezra S. Winslow - Business mathematics - 1853 - 252 pages
...68669.56 ~- 43560 = 1.576 acres. 2 2 J \ To find the length of an arc of a circle. ROLE. — 1. From eight **times the chord of half the arc, subtract the chord of the whole arc, and** divide the remainder by 3 ; the quotient will be the length of the arc, nearly — a trifle too small.... | |
| Robert Rawson - 1856
...22..30 -4142136 3420 45.. 1-0000000 5869 Approximate Rule (usually called Huygens- Theorem-). From eight **times the chord of half the arc, subtract the chord of the whole arc, and** one third of the remainder will he the length of the arc, nearly. ADB — FORMULA. AD — AB EXAMPLE.... | |
| Lucius D. Gould - 1857
...square of the circumference to the area. To fimd the Length of any Arc of a Circle. .RuZe 1.—From **8 times the chord of half . the arc, subtract the chord of the whole arc** ; one-third of the remainder will be the length of the arc nearly. .Rule 2.—As 180 is to the number... | |
| Mechanical engineering - 1855 - 403 pages
...^^f'5625 = 2074-225 ft., the radius. To find the length of any given arc of a circle. Rule. — From eight **times the chord of half the arc subtract the chord of the whole arc, and** one third of the remainder is equal the length of the arc. MENSURATION. Required the length of the... | |
| Isaac Todhunter - 1860
...J(lc*)=nc- 1, 13. Prove the following rule for finding the length of a small circular arc ; from eight **times the chord of half the arc subtract the chord of the whole arc, and** one-third of the remainder will give the length of the arc nearly. 14. From the identical equation... | |
| Alfred Newsom Niblett - 1861
...an arc as the line AB ; and the versed sine is part of the diameter cut off hy the chord. RULES. 1. **From 8 times the chord of half the arc subtract the chord of the whole arc, and** J of the remainder will be the length of the arc, nearly. 2. Divide the square of half the chord by... | |
| |