 | Mathematics - 1801 - 658 pages
...opposite angles in it is equal to two right angles, or i8r°. Multiply the four remainders continually together, and the square root of the last product will be the area of die trar < » pezmm. EXAMPLE^. In order to, facilitate the demonstration of the rule, it is thought... | |
 | Peter Nicholson - 1809 - 426 pages
...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 of a triangle ABC, whose three sides... | |
 | John Gummere - Surveying - 1814 - 398 pages
...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 ABC, Fig. 69, be llje triangle. Bisect any two of the angles, BAC, ABC, by the... | |
 | Thomas Keith - 1817 - 306 pages
...the 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 a triangle is... | |
 | Anthony Nesbit - Surveying - 1824 - 476 pages
...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 t. If a triangle be accurately laid down, from a pretty large scale of iqual... | |
 | George Curtis - Lumber - 1824 - 132 pages
...severally, noting down the remainders ; then multiply the half sum and the three remalftders continually together, and the square root of the last product will be the Area. EXAMPLE. Suppose a Triangle whose three sides are .30, 26, and 22. Sides, 30^-25+22 sum 78-^2=39=—... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...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. Едг. Requireth the area of a triangle ABC, whose three »ides... | |
 | John Nicholson - Machinery - 1825 - 822 pages
...half sum subtract each side separately; 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. Ex. Required the area of the triangle whose base is 6 feet, and perpendicular height... | |
 | John Nicholson (civil engineer.) - Great Britain - 1825 - 1008 pages
...the half sum subtract each lide separately ; multiply the half sum and the three remainders coni-illy together ; and the square root of the last product will be the irea of the triangle. Ex. Required the area of the triangle whose base is 6 feet, and terpendicular... | |
 | Zadock Thompson - Arithmetic - 1826 - 176 pages
...half sum subtract each side separately ; 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. Examples. 1. How many square feet in a triangle whose base is 40 feet, and height... | |
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From half the sum of the three sides subtract each side ; multiply the half sum and the three remainders together, and the square root of the product will be the area required. 
