Books Books ... and 48° 15'? Ans. 6 A. 3 R. 18 P. PROBLEM V. To find the area of a triangle when the three sides are given. RULE. From half the sum of the three sides... A Treatise on Surveying and Civil Engineering, Wherein Everything that is ... - Page 7
by P. O'Shaughnessy (Civil engineer) - 1848 - 98 pages ## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 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...Sum and the three Remainders continually together, and the Square Root of the last Produdl will be the Area of the Triangle, that is, ^++l= j = Half the... ## A Treatise of Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - 1806 - 452 pages
...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 sides subtract each side severally ; take the logarithms of half the sum and three remainders, anil half their total will be the logarithm... ## The principles of architecture, Volume 1

Peter Nicholson - 1809 - 426 pages
...f. i ii PROBLEM III. To find the area of a triangle, whose three sides only are given. From the half sum of the three sides, subtract each side severally; multiply the half sum and the three remainders together, and the square root of the product will be the area required. EXAMPLE I. Rcquireth the area... ## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1811 - 592 pages
...following 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... ## A Treatise on Surveying, Containing the Theory and Practice: To which is ...

John Gummere - 1814 - 390 pages
...chains, and the adjacent angles 37° 30' and 48° 15'? Ans. 6A. 3R. 18P. PROBLE To find the area of a triangle, when the three sides are. given. % RULE;...severally ; multiply the half sum and the three remainders contiuually together, and the square root of the last product will be the area.* * DEMONSTRATION. Let... ## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 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 product will be... ## A Treatise on Surveying: Containing the Theory and Practice : to which is ...

John Gummere - 1817 - 206 pages
...chains, and the adjacent angles 37? 30' and 48° 15' ? Ans. 6A. 3R. 18P. PROBLEM V. To find the area of a triangle, when the three sides are given. RULE. From half the sum of the three sides subtract each sifle severally ; multiply the half sum and the three remainders continually together, and the square... ## A Treatise on Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - 1818 - 478 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... ## A Treatise on Practical Mensuration in Eight Parts ...

Anthony Nesbit - 1824 - 476 pages
...rood ? Ans. £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...sum and the three remainders continually together; and the square root of the last product will be the area of the triangle. Jvofe t. If a triangle be... 