 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.  The principles of architecture - Page 155by Peter Nicholson - 1809Full view - About this book
 | Charles Vyse - Arithmetic - 1806 - 342 pages
...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 Produdl will be the Area of the Triangle, that... | |
 | John Gummere - Surveying - 1814 - 398 pages
...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 product will be the area.* * DEMONSTRATION. Let... | |
 | Charles Vyse - Arithmetic - 1815 - 340 pages
...? 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... | |
 | Thomas Keith - 1817 - 306 pages
...three sides together, and take half that sum ; subtract each side separately from the half sum, then multiply the half sum and the three remainders together, and the square root of the last product will give the area I. Example. * Demonstration. The truth of this rule is obvious, because... | |
 | Anthony Nesbit - Surveying - 1824 - 476 pages
...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 product will be the area of the triangle. Jvofe... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...décimais. 12 3 12-25 8 б '85 б 1 б 98 О 2)104 l 6 Am. 52 O n f. i ii 2)1О412Л f. 52 Ofi2.5 Prob. 3. To find the area of a triangle, whose three sides...square root of the product will be the area required. Едг. Requireth the area of a triangle ABC, whose three »ides AB BC, and CA, are respectively 13,... | |
 | Thomas Hornby (land surveyor.) - Surveying - 1827 - 318 pages
...each side from that half sum ; then multiply the said half sum and the three remainders continually together ; and the square root of the product will be the area of the triangle. EXAMPLES. 1. — Required the area of the triangular field ABC, whose base AB is 650,... | |
 | John Bonnycastle - Geometry - 1829 - 256 pages
...— c2) X (c2— a— 56 MENSURATION 2. Multiply the half sum and the three remainders continually together, and the square root of the product will be the area required. EXAMPLES. 1. Required the area of the triangle ABC, whose three sides BC, CA, and AB are 24, 36, and... | |
 | Thomas Curtis - Aeronautics - 1829 - 810 pages
...sides, subtract each side separately, and multiply the half sum and the three remainders continually together; and the square root of the product will be the area. the sides Then by hence AD r: — E 1C, geAC, and AB, t» — «' "~~ 2 с ¿> — ; o AD —DB = —... | |
 | Abel Flint - Surveying - 1830 - 322 pages
...From half the sum of the sides subtract each side separately. Multiply the half sum and the several remainders together, and the square root of the product will be the area. — ED . her corresponding to one half the sum of those logarithms will be the area of the triangle.... | |
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