| Ireland commissioners of nat. educ - 1834 - 370 pages
...three sides of any Triangle given, to find its orea. RULE I. From, half the sum of the three sides **subtract each side separately, then multiply the half sum and the three remainders together, and** the square root of the last product will be the area of the triangle.* height gives the area of a rectangular... | |
| Commissioners of National Education in Ireland - 1837
...the three sides of any Triangle given, to find its area. RULE I. From half the sum of the three sides **subtract each side separately, then multiply the half sum and the three remainders together, and** the square root of the last product will be the area of the triangle.* RULE II. Divide the difference... | |
| C. Davies - Surveying - 1839 - 380 pages
...1 Ans. 29«2 OR IP. THIRD METHOD. Measure the three sides of the triangle. Then, add them together **and take half their sum. From this half sum subtract...together, and extract the square root of the product : the** remit will be the area (Geom. Mens. Prob. II). Or, after having obtained the three remainders, add... | |
| Charles Davies - Navigation - 1835 - 359 pages
...57' 1 An1. 29.3 OR IP. TH1RD METHOD. Measure the three sides of the triangle. Then, add them together **and take half their sum. From this half sum subtract...together, and extract the square root of the product : the** renult mill be the area (Geom. Mens. Prob. II). Or, after having obtained the three remainders, add... | |
| Joseph Gwilt - Architects - 1842 - 1114 pages
...severally from such half sum, by which three remainders will be obtained. Multiply such half ягпп **and the three remainders together, and extract the square root of the** last product, which is the area of the triangle. This rule is founded on one of the theorems in Trigonometry... | |
| Rufus Putnam - Arithmetic - 1849 - 404 pages
...this method. Or, RULE 2. Measure the three sides of the field ; add them together, and from half their **sum subtract each side separately ; then multiply the half sum and the three remainders together** ; the square root of this product will be the area. 10. The three sides of a triangular field measure... | |
| Horatio Nelson Robinson - Mathematics - 1851 - 96 pages
...and from said half sum take each side severally, thus obtaining three remainders. Multiply the said **half sum and the three remainders together, and extract the square root of the product** for the area required. I now propose to demonstrate this rule. Let ABC be the triangle : its area is... | |
| Alexander Ingram - 1851 - 204 pages
...three sides of a triangle; to find the area. RULE. Add the three sides together, and from half the **sum subtract each side separately. Then multiply the half sum and the three remainders** successively, and the square root of the last product will be the area. That is, if a, b, c, represent... | |
| Charles Haynes Haswell - Engineering - 1853 - 318 pages
...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 three remainders** continually together, and the square root of the product will be the area. To find the Length of one... | |
| Charles Davies - Navigation - 1857 - 452 pages
...? Ans. 29A. OR IP. THIRD METHOD. Measure the three sides of the - triangle. Then, add them together **and take half their sum. From this half sum subtract...side separately. Then, multiply the half sum and the** tiiree remainders together, and extract the square root of the product: the result will be Hie area... | |
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