 | Thomas Baker - 1850 - 244 pages
...has been made, and the work must be repeated. TO FIND THE AREA OF A TRIANGLE FROM THE THREE SIDES. RULE. From half the sum of the three sides subtract each side severally and reserve the three remainders; multiply the half sum continually by the three remainders, and the... | |
 | Daniel Leach - 1851 - 280 pages
...is 80 yards ? 364. To find the area of a triangle, when the length of its three sides is known,— RULE. From half the sum of the three sides subtract each side separately. Then multiply the half sum by each side in succession. The square root of the continued... | |
 | Daniel Leach - 1853 - 622 pages
...a triangle ? 364. To find the area of a^ triangle, when the length of its three sides is known, — RULE. From half the sum of the three sides subtract each side separately. Then multiply the half sum by each side in succession. The square root of the continued... | |
 | William Templeton (engineer.) - 1855 - 326 pages
...feet, the area. 2 When only the three sides of a triangle can t>e given, to find the area. Mule. — From half the sum of the three sides, subtract each...severally; multiply the half sum and the three remainders together, and the square root of the product is equal to the area required. Required the area of a... | |
 | Elias Loomis - 1855 - 192 pages
...feet, and the included angle 67° 15' ? Ans. (85.) When the three sides are known, we may use RULE III. From half the sum of the three sides subtract each side severally ; multiply together the half sum and the three remainders, and extract the square root of the product. Demonstration.... | |
 | 1855 - 420 pages
...206-34375 square feet, the area. When only the three sides of a triangle can be given tn find the area. Rule. — From half the sum of the three sides subtract...severally ; multiply the half sum and the three remainders together, and the square root of th* product is equal the area required. Required the area of a triangle,... | |
 | Charles Haynes Haswell - 1858 - 350 pages
...contain ? Ans. 74$ yards. To ascertain the area of a Triangle by the length of its Sides (Figs. 6 and 7). 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... | |
 | David Price - 1858 - 264 pages
...? Ans. 9 acres 2 roods. VI. To find ike area of a triangle whose three sides are given. RULE 1. — From half the sum of the three sides, subtract each side severally. 2. — Multiply the three remainders and half the sum of the three sides together. 3. — The square... | |
 | Frederick Augustus Griffiths - 1859 - 426 pages
...— = 140 square yards. Area required. 2 To find the area of a triangle, whose three sides are given. From half the sum of the three sides, subtract each...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... | |
 | Elias Loomis - 1859 - 372 pages
...feet, and the included angle 67° 15' ? Ans. (85.) When the three sides are known, we may use RULE III. From half the sum of the three sides subtract each side severally ; multiply together the half sum and the three remain* ders, and extract the square root of the product. Demonstration.... | |
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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,... 
