| Stoddard A. Felter - 1868 - 360 pages
...8 ft. X 2 = 16 sq. ft. Fig. 24. Prob. Hi — The sides of a triangle being given to find the area. **Rule. — From half the sum of the three sides subtract each side** separately, then multiply the continued product of these remainders by half the sum of the sides, and... | |
| Isaac Todhunter - 1869 - 312 pages
...base, the quotient is the height. 152. The three sides of a triangle being given, to find the area. **RULE. From half the sum of the three sides subtract each side** separately ; multiply the half sum and the three remainders together : the square root of the product... | |
| Anthony Nesbit - 1870 - 578 pages
...foregoing method. 4. When the three sides of a triangle are given, the area may be found as fol. Iowa : **From half the sum of the three sides subtract each...sum and the three remainders continually together,** and the square root of the last product will be the area required. This method is too prolix, except... | |
| Hoy D. Orton - 1871 - 202 pages
...it makes the corner a true right-angle. To find the area of any triangle when the three tides only **are given. RULE. — From half the sum of the three sides subtract each side severally; multiply** these three remainders and the said half sum continually together ; 'hen the square root of the last... | |
| Daniel W. Fish - 1874 - 300 pages
...What is the area of an isosceles triangle whose base is 20 ft., and each of its equal sides 15 feet 1 **RULE. — From half the sum of the three sides, subtract each side** teparately ; multiply the half -sum and the three remainders together; the square root of the product... | |
| Daniel W. Fish - 1874 - 300 pages
...What is the area of an isosceles triangle whose base is 20 ft., and each of its equal sides 15 feet ? **RULE. — From half the sum of the three sides, subtract each side** separately ; multiply the half-surn ami the three remainders together; the square root of the product... | |
| Lorenzo Fairbanks - 1875 - 468 pages
...chains, and the perpendicular 18.25 chains ? PROBLEM III. 710. To find the area of a triangle when **three sides are given. 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... | |
| Horatio Nelson Robinson - 1875 - 468 pages
...of an isosceles triangle whose base is 20 ft., each of its equal sides 15 ft. ? Ans. 111.85 sq. ft. **RULE, from half the sum of the three sides subtract each side** separately ; multiply the half-sum and the three remainders together ; the square root of the product... | |
| Henry Lewis (M.A.) - 1875 - 104 pages
...CASE II. — The area of a triangle may, however, be determined from its three sides by the following **rule: — 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... | |
| George Albert Wentworth - 1877 - 416 pages
...figure. § 424 GEOMETRY. — BOOK V. EXERCISES. 1. The area of any triangle may be found as follows : **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. Denote... | |
| |