 | James Hale - 1829 - 124 pages
...Perpendicular. RULE 2. If the three Sides of a Triangle be given, its Area may be thus obtained: — From half the sum of the three Sides, subtract each Side severally, then extract the Square Root of the continued Product of the half sum and three remainder for the Area.... | |
 | Thomas Conkling (W.) - 1831 - 302 pages
...three 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... | |
 | 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 half sum and the three Remainders continually together, and the square root of their Product will be the area. (3) How many acres are... | |
 | 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 sum and the three remainders continually together ; and the square root of their product will be the area. (3) The three sides of... | |
 | George Alfred - 1834 - 336 pages
...the perpendicular CD Э6 ; what is the area in acres, &c. ? ADS. 14 acres 2 roods 32 poks PROBLEM 7. To find the area of a triangle when the three sides...half the sum of the three sides subtract each side several! y, then multiply the half sum and the three remainders continually together, and the square... | |
 | 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... | |
 | Charles Davies - 1840 - 264 pages
...triangle whose base is 72,7 yards, and altitude 36,5 yards 1 Ans. 1326,775 sq. yds. PROBLEM III. 10. To find the area of a triangle when the three sides are known. RULE. 1st. Add the three sides together and take half their sum. Mensuration of Surt'acfs. 2nd.... | |
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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 separately. 
