| 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... | |
| Oliver Byrne - 1851 - 310 pages
...A " " 7 J pa. = area required. To find the area of a triangle whose three sides only are given. — **From half the sum of the three sides subtract each...sum and the three remainders continually together,** and the square root of the product will be the area required Required the area of the triangle ABC,... | |
| Daniel Leach, William Draper Swan - 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 - 626 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,... | |
| David Price - 1858 - 266 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... | |
| 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... | |
| Anthony Nesbit - 1859 - 494 pages
...rood ? Ans. £6. 4s. 7%d. 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...sum and the three remainders continually together,** and the square root of the last product will be the area of the triangle, c 4 Note 1.— If a triangle... | |
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