 I measured a base of 500 yards in a straight line close by one side of it ; and at each end of this line I .found the angles subtended by the other end and a tree, close to the bank on the other side of the river, to be 53° and 79° 12'.  Lessons on plane trigonometry - Page 51by Edward Butler (A.M.) - 1862Full view - About this book
 | Mathematics - 1801 - 658 pages
...to BC, AC. ?„ Wanting 2. Wanting' to know the breadth of a river, I measured 100 yards in a right line close by one side of it ; and at each end of this line I found the angles, subtended by the other end and a tree close by the other side of the river, to be 53° and... | |
 | John Bonnycastle - Trigonometry - 1806 - 464 pages
...10.000OO00 2.0791812 9.8125174 1.8916986 10.0000OOO 2.0791812 10.3215039 2.4006851 5. Wanting to know the breadth of a river, I measured 100 yards in a straight line by the side of it, and at each end of this line, 1 found the angles subtended by (;•) An angle taken... | |
 | Charles Hutton - Mathematics - 1807 - 464 pages
...(593-08 yards. Ans'{ 612-38 EXAM. xx. Wanting to know the breadth of a river, I measured a base of 509 yards in a straight line close by one side of it; and at each end of this line I found the angles subtended by the other end and a tree, close to the bank on the other side of the river, to... | |
 | Charles Hutton - Mathematics - 1811 - 494 pages
...J593-08 yards. •\612-38 EXAM. xx. Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it ; and at each end of this line I .found the angles subtended by the other end and a tree, close to the bank on the other side of the river, to... | |
 | Francis Nichols - Plane trigonometry - 1811 - 162 pages
...(See the last fig.) Answer. Distance AE = 3690 feet, and height EC = 314 feet. 9. Desirous to know the breadth of a river I measured 100 yards in a straight line by the side of it, and at the ends of this distance I took the angles formed by it and a tree on the... | |
 | Charles Hutton - Arithmetic - 1818 - 646 pages
...693-08 yards. ' $612-38 EXAM. xx. Wanting to know the breadth of a river, l measured a base of 500 yards in a straight line close by one side of it ; and at each end of this line l found the angles subtended by the other end and a tree close to the bank on the other side of the... | |
 | Robert Gibson - Surveying - 1821 - 594 pages
...593.08 yards. Ans. ( 612.38 Ex. 6. Wanting to know the breadth of a river, l measured a base of 500 yards in a straight line close by one side of it, and at each end of this line, I found the angles subtended by the other end and a tree, close to the bank on the other side of the river, to... | |
 | Charles Hutton - Mathematics - 1822 - 616 pages
...station and the house ? Ans. EXAM. xx. Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it ; and at each end of this line I found the angles sabtended by the other end and a tree close to the bank on the other side of the river, to be... | |
 | William Galbraith - Astronomy - 1827 - 412 pages
...may be found in the same manner, or otherwise by joining AG and BE. EXAMPLE IL Wanting to know the breadth of a river, I measured 100 yards in a straight line by the side of it ; and at each end of this line I found the angles subtended by the other end, and... | |
 | Robert Gibson - Surveying - 1832 - 290 pages
...house? . 4593.08 "'s'i 612.38 Ex. 6. Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it, and at each end of this line I found the angles subtended by the other end and a tree close to the bank on the other side of the river to be... | |
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