 | John William Colenso (bp. of Natal.) - 1851 - 382 pages
...canal in the other direction. Find the shortest distance of the tree from the bank. 57. Find the area of a trapezoid, of which the parallel sides are 750...1225 links, and the distance between them 1540 links. 58. Prove the formula tan (lttr- $в) + cot(frr -|0) = 2 secft 59. If smn = msin/3, and tana = n tan... | |
 | Richard Bowling - Arithmetic - 1858 - 128 pages
...a trapezoid whose parallel sides are 85 and 89£ feet, and its perpendicular breadth 19.05 feet. 3 Find the area of a field in the form of a trapezoid, whose parallel sides measure 850 and 947 links, and its perpendicular breadth 695 links. 4 The diagonal... | |
 | Henry Lewis (M.A.) - Measurement - 1875 - 104 pages
...of a board 30 ft. long, the breadth at one end being 3 ft. 9 in., and at the other 1 ft. 9 in.? 65. Find the area of a field in the form of a trapezoid, of which the parallel sides are 250 yds. and 150 yds., and the perpendicular distance between them 80 yds. 66. Find the area of a field... | |
 | Eugene L. Dubbs - Arithmetic - 1893 - 362 pages
...Trapezoids. 1. A floor is 28 ft. long, and its two ends are 19 ft. • and 1 6 ft. wide. What is its area? 2. Find the area of a field in the form of a trapezoid, the parallel sides being 49 rods and 37 rods in length, and lying 40 rods apart. 3. A lot is bounded... | |
 | Andrew Wheeler Phillips, Irving Fisher - Geometry, Modern - 1896 - 276 pages
...nonparallel sides. Hint. — Combine § 135 with the above proposition. * The ancient Egyptians attempted to find the area of a field in the form of a trapezoid, in which AB = CD, by multiplying half the sum o'f its parallel sides by one of its other sides, an... | |
 | Andrew Wheeler Phillips, Irving Fisher - Geometry - 1896 - 554 pages
...sides. Hint. — Combine § 135 with the above proposition. " * The ancient Egyptians attempted to find the area of a field in the form of a trapezoid, in which AB = CD, by multiplying half the sum of its parallel sides by one of its other sides, an incorrect... | |
 | Alfred John Pearce - 1897 - 202 pages
...trapezoid whose parallel sides are 110 ft. and 95 ft., and the perpendicular between them 400 ft. 6. Find the area of a field in the form of a trapezoid, the parallel sides being 300 Iks. and 240 Iks., and the perpendicular distance between them 120 Iks.... | |
 | William James Milne - Geometry, Modern - 1899 - 258 pages
...^ of an acre. If the walk contains Jf of the entire area, what is the width of the walk ? Ex. 505. Find the area of a field in the form of a trapezoid whose bases are 45 rd. and 27 rd., and each of whose non-parallel sides is 15 rd. Proposition XV 355.... | |
 | William James Milne - Geometry - 1899 - 326 pages
...= \ rd., twice the width of the walk, and the width of the walk is \ rd., or 4 ft. 1J in. Ex. 505. Find the area of a field in the form of a trapezoid whose bases are 45 rd. and 27 rd., and each of whose non_parallel sides is 15 rd. Solution. Let ABCD... | |
 | Frank Castle - Mathematics - 1899 - 424 pages
...the area. 9. Each side of a rhombus is 60 ft., and one of the diagonals 100 ft. Find the area. 10. Find the area of a field in the form of a trapezoid, parallel sides 745 and 749 links, and perpendicular distance between them 1379 links. Circumference... | |
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Find the area of a field in the form of a trapezoid whose altitude is 120 m and whose parallel sides are 130 m and 180 m. 
