| Charles Vyse - Arithmetic - 1806 - 342 pages
...let at per Acre ? Case 2. When the three Sides of a Triangle are given, to find the Area. RULE. 3. **From Half the Sum of the three Sides subtract each Side severally** ; multiply the Half Sum and the three Remainders continually together, and the Square Root of the last... | |
| Robert Gibson - Surveying - 1806 - 486 pages
...problem will be evident. PROBLEM VIII. Three sides of a plane triangle given t0 find the area. RULE. **From half the sum of the three sides subtract each side severally** ; take the logarithms of half the sum and three remainders, anil half their total will be the logarithm... | |
| Robert Gibson - Surveying - 1811 - 580 pages
...problem will be evident. PROB. nil. The three sides of a filane triangle given to find the area. RULE. **From half the sum of the three sides subtract each side severally** ; take the logarithms of half the sum and three remainders, and half their total will be the logarithm... | |
| John Gummere - Surveying - 1814 - 398 pages
...15'? Ans. 6A. 3R. 18P. PROBLE To find the area of a triangle, when the three sides are. given. % RULE; **From half the sum of the three sides subtract each side severally** ; multiply the half sum and the three remainders contiuually together, and the square root of the last... | |
| Charles Vyse - Arithmetic - 1815 - 340 pages
...let at per acre ? Case 2. When the three sides of a triangle are given, to find the area. i RULE. 3. **From half the sum of the three sides subtract each side severally** ; multiply the half cum and the three remainders continually together, and the square root of the Iast... | |
| Robert Gibson - Surveying - 1818 - 502 pages
...problem will be evident. PROB. VIII. Tlie three sides of a plane triangle given, to find the area. RULE. **From half the sum of the three sides subtract each side severally** ; take the logarithms of the half sum and three remainders, and half their total will be the logarithm... | |
| Anthony Nesbit - Surveying - 1824 - 476 pages
...4*. 7 \d. , PROBLEM V. To find the area of a triangle, the three sides only of which are given. RULE. **From half the sum of the three sides subtract each side severally** ; multiply the half sum and the three remainders continually together; and the square root of the last... | |
| William Kinne - 1829 - 246 pages
...right-angle. RULE 2. — To find the area of any triangle when the three sides only are given, RULE. — **From half the sum of the three sides' subtract each side severally** ; multiply these three remainders and the said half sum continually together; then the square root... | |
| John Bonnycastle - Geometry - 1829 - 256 pages
...102. 5/e. PROBLEM III. To find the area of a triangle whose three sides only are given. RULE.* . 1 . **From half the sum of the three sides subtract each side severally.** * Demon. Let AC— a, ±3=b, uc=c, and AD=a:; (See preceding fig.) Then, since BD=&— x, we shall... | |
| Thomas Conkling (W.) - Arithmetic - 1831 - 302 pages
...lines or sides. PROBLEM3. When the sides of a triangle are given, to find the content. . ' ' . RULE. **From half the sum of the three sides, subtract each side severally; then,** multiply that half sum and the three remainders together; and the sqipre root of the last product will... | |
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