. Bulletin. Agricultural experiment stations -- United States; Agriculture -- United States. Fui. -'i.âl)iiigram showing inaccuracy of land measurements. notes. The Egyptian has a special formula for computing the area of land to which he adheres with a steadfastness which would be praise- worth}-in a better cause. For instance, when a triangular piece of ground is to be surveyed, only the lengths of the sides are taken. To compute the area the lengths of two adjacent sides are added, the sum is divided by 2, and this quotient is multiplied by the length of the remaining side divided b}- 2. If
. Bulletin. Agricultural experiment stations -- United States; Agriculture -- United States. Fui. -'i.âl)iiigram showing inaccuracy of land measurements. notes. The Egyptian has a special formula for computing the area of land to which he adheres with a steadfastness which would be praise- worth}-in a better cause. For instance, when a triangular piece of ground is to be surveyed, only the lengths of the sides are taken. To compute the area the lengths of two adjacent sides are added, the sum is divided by 2, and this quotient is multiplied by the length of the remaining side divided b}- 2. If the figure happens to be a quadri- lateral, the two opposite sides are added together and divided by 2 and the quotient is multiplied by the two remaining sides added together and divided by 2. Putting the formula in figures and refer- ring to the accompanying diagram, the inaccuracy of the method may be plainly seen ( ). , ab -f be ac Area or triangle = ^ X -^ â ,. T ., , ab-fcd ac + bd Area ot quadrilateral = ^â X â^ââ. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Office of Experiment Stations. Washington : G. P. O.
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