A treatise on surveying and navigation: uniting the theoretical, the practical, and the educational features of these subjects (1852)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst · leaf 78
land containing 8 acres, two ofits sides are 64, and 46 rods respectively; what is the angle be-tween these sides, and what is the length of the remaining side ? Ans. The angle is 60° 27, or is supplement 119° 33.The side is 57.37 rods, or 95.535 rods ; the less angle corres-ponding to the lesser… … 74 SURVEYING. PROBLEM V. To find the area of a trapezoid. Rule.— Add the two parallel sides together, and take half the sum.Multiply this half sum by the perpendicular distance between the sides. Or, The sum of the parallel sides multiplied by their distanceasunder will give twice the area. (Leg.…
Surveying · Navigation
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