| Robert Gibson - Surveying - 1806 - 486 pages
...Hence the following 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...the logarithms of half the sum and three remainders, anil half their total will be the logarithm of the area : or, take the square root of the continued... | |
| 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 - 1811 - 580 pages
...of Ground. 215 Hence the following problem will be evident. PROB. nil. The three sides of a filane triangle given to find the area. RULE. From half the...be the logarithm of the area : or, take the square roo* ot the continued product of the half sum and three remainders for the area. EXAMPLES. PL. 8. Jig.... | |
| John Gummere - Surveying - 1814 - 398 pages
...48° 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
...triangle, and its root the area. Q. ED Hence the following problem will be evident. PROB. VIII. Tlie three sides of a plane triangle given, to find the...subtract each side severally ; take the logarithms of the half sum and three remainders, and half their total will be the logarithm of the area : or take... | |
| Robert Gibson - Surveying - 1821 - 594 pages
...problem will be evident. PROB. V11L JTie tffree. sides of a plane triangle given to Jbid the tfrga. RULE* "From half the sum of the three sides subtract...take the square root of the continued product of the half 4um arid three remainders for the area. * The demonstration of tttis it plain from the foregoing... | |
| Anthony Nesbit - Surveying - 1824 - 476 pages
...£6 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... | |
| John Gummere - Surveying - 1828 - 404 pages
...and.48°15'? Ans. 6 A. 3R. 18 P. PROBLEM V. To find the. area of a triangle when the three sides are given. 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
...true 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... | |
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