 | Thomas Keith - Navigation - 1810 - 478 pages
...(N. 26.) which make equal to 384 by a scale of equal parts at c make the angle ACB=36°. 52' (R.27.), the complement of A, from c draw the hypothenuse,...it will cut the base AB in the point A. Then will AC measure 480, and AB 288, BY CALCULATION. I. The hypothenuse radius, BC will be the sine of A, and... | |
 | Thomas Keith - Navigation - 1826 - 504 pages
...a scaleof equal parts, at с make the angle Асв=36°.52' (R. 27.), the complement of л, from с draw the hypothenuse, and it will cut the base AB in the point л. Then will AC measure 480, and AB 288. \ ^ jj BY CALCULATION. I. The hypothenuse radius, вс »ill... | |
 | Thomas Keith - 1839 - 498 pages
...BC (61), which make equal to 384 by a scale of equal parts, at c make the angle ACB=86° 52' (63), the complement of A, from c draw the hypothenuse,...it will cut the base AB in the point A. Then will AC measure 480, and AB 288. BY CALCULATION. I. The hypothenuse radius, BC will be the sine of A. and... | |
 | John Budge - Mining engineering - 1845 - 250 pages
...0 7 0 ft. 4 2 2 in. 11-3522 9 6-1698 5-6761 3 i fath. 1 11 0 ft. 1 3 3 in. 9-3096 9 11-7864 10-6548 BY CONSTRUCTION. PROCESS. Draw the line AB of a sufficient...feet 10 inches. CASE III. WHEN THE BASE IS GIVEN. RULE—Look in the third table, and opposite the given angle (as in the former cases) the corresponding... | |
 | Mineral industries - 1857 - 604 pages
...equal to 57 feet by a scale of equal parts. At С make the angle=39° 30' the complement of A. From С draw the hypothenuse, and it will cut the base AB in the point A; then will AB measure 47 feet, and А С 73 feet 10 inches. CASE III. — WHEN ТПЕ BASE IS GIVEN. Eule. — Look in the third table,... | |
 | John Budge - Mine surveying - 1858 - 224 pages
...the perpendicular BC, which make equal to 57 feet by a scale of equal parts. At C make theangle=39° 30' the complement of A. From C draw the hypothenuse,...will AB measure 47 feet, and AC 73 feet 10 inches. 3 11•7864 3 10•6548 Hyp. 12 1 10•4412 CASK III. — WHEN THE BASE IS GIVEN. Rule. — Look in... | |
 | John Budge - 1860 - 214 pages
...the perpendicular BC, which make equal to 57 feet by a scale of equal parts. At C make the angle=39° 30' the complement of A. From C draw the hypothenuse,...AB measure 47 feet, and AC 73 feet 10 inches. CASE III.—WHEN THE BASK IS GIVEN. Rule.—Look in the third table, and opposite the given angle (as in... | |
 | Samuel Harries Daddow, Benjamin Bannan - Coal mines and mining - 1866 - 826 pages
...base are required. Operation. Base, 7 11.8459» By Construction. PROCESS. Hyp. 12 1 10.4412 Fio. 164. Draw the line AB of a sufficient length; at any point...AB in the point A ; then will AB measure 47 feet, aad AC 73 feet 10 inches. CASE III. — WHEN THE BASE is GIVIV. RULE. — Look in the third table,... | |
 | Samuel Harries Daddow, Benjamin Bannan - Coal mines and mining - 1866 - 820 pages
...any point B erect the perpendicular BC, which make equal to 57 feet by a scale of equal parts. At 0 make the angle = 39' 30', the complement of A. From...feet 10 inches. CASE III. — WHEN THE BASE is GIVEN. Kri.E. — Look in the third table, and opposite the given angle (as in the former cases) the corresponding... | |
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Look in the third table, and opposite the given angle (as in the former cases) the corresponding numbers to one fathom of base will be seen, which, being multiplied by the given length of the base, produces the hypothenuse and perpendicular. 