 | William Kinne - 1831 - 248 pages
...the corner a true rightangle. RULE 2.— To find the area of any triangle when the thret 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 of the last... | |
 | Robert Gibson - 1832 - 290 pages
...problem will be evident. PROBLEM VIII. The three' tidet 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 half the sum and three remainders, and half their total will be the logarithm... | |
 | Samuel YOUNG (of Manchester.) - 1833 - 272 pages
...many acres does it contain ? When the three sides only are given. RULE 2. From half the sum of the sides subtract each side severally : multiply the...Remainders continually together, and the square root of their Product will be the area. (3) How many acres are there in a triangular plot of land whose three... | |
 | Francis Walkingame - 1833 - 204 pages
...base, 9 feet 4 inches ? ADB RULE 2. When the three sides only are given. — From half the sum of the sides subtract each side severally: multiply the half...remainders continually together ; and the square root of their product will be the area. (3) The three sides of a triangular fish-pond, are 140, 336, and 415... | |
 | Frederick Augustus Griffiths - 1839 - 348 pages
...half the product will be the area. To find the area of a triangle whose three sides are given.—From half the 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. Two sides of a right angled... | |
 | Frederick Augustus Griffiths - 1840 - 436 pages
....?i__ =140 Square yards. Area required. To find the Area of a Triangle, whose three Sides are given. From half the sum of the three sides, subtract each...; multiply the half sum, and the three remainders together, and the square root of the product will be the Area required. Example. — Required the Area... | |
 | Abraham Crocker - 1841 - 486 pages
...the area. RULE II. When the three sides are given. Add the sides together. From half the sum of the sides subtract each side severally. Multiply the half sum and the three remainders together, and the square-root of the last product will be the area. That is, •/a + b + c^ — a +... | |
 | Charles Waterhouse - 1842 - 180 pages
...by means of the given proportion, the other sides may be found. PROB. IV. — To Measure a Triangle. RULE. — From half the sum of the three sides, subtract each side severally ; multiply these three remainders and the said half sum continually together ; the square root of the last product... | |
 | Charles WATERHOUSE - 1844 - 228 pages
...ft.=192 ft., Ans. „ 3. To find the area of a triangle. RULE. — If the three sides only are given. — From half the sum of the three sides, subtract each side severally ; multiply these three remainders and the said half sum continually together ; and the square root of the last... | |
 | Charles Haynes Haswell - 1844 - 298 pages
...cd, and half the product will be the area. To find the Area of a Triangle by the length of its sides. RULE. — From half the sum of the three sides subtract each side separately ; then multiply the half sum and the \hree remainders continually together, and the square... | |
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From half the 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. — Required the area of a triangle, whose sides are 50,... 
