| Robert Gibson - Surveying - 1806 - 452 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 - 320 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 - Electronic books - 1814 - 508 pages
...a filant Mangle given to Jlnd the areq. RULE. From half the sum of the three sides subtract •ach **side severally ; take the logarithms of half the sum...be the logarithm of the area : or, take the square** root of the continued product of the half sum and three remainders for the area. . EXAMPLES. Pi. S.jg.... | |
| John Gummere - Surveying - 1814 - 346 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 - 320 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 - 478 pages
...the area. Q. ED Hence the following problem will be evident. PROB. VIII. Tlie three sides of a plane **triangle given, to find the area. RULE. From half...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... | |
| Anthony Nesbit - Measurement - 1824 - 434 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 - 216 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
...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... | |
| John Bonnycastle - Geometry - 1829 - 252 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... | |
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