| John Gummere - 1828 - 406 pages
...and.48°15'? Ans. 6 A. 3R. 18 P. PROBLEM V. To find the. area of a triangle when the three sides 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 last product will be the area.* * DEMONSTRATION. Let ABC, Fig. 69, be the... | |
| John Gummere - 1828 - 394 pages
...adjacent angles 37° 30' , and 48° 1 5' ? Алs. 6 A. 3 R. 18 P. PROBLEM V. To find the area of a **triangle when the three sides are given. RULE. From half the sum of the three sides** subfr&ct each side severally; multiply the half sum and the three remainders continually together,... | |
| William Kinne - 1829 - 248 pages
...the corner a true right-angle. RULE 2. — To find the area of any triangle when the three sides 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; then the square root of the last... | |
| John Bonnycastle - 1829 - 252 pages
...102. 5/e. PROBLEM III. To find the area of a triangle whose three sides only are given. RULE.* . 1 . **From half the sum of the three sides subtract each side severally.** * Demon. Let AC— a, ±3=b, uc=c, and AD=a:; (See preceding fig.) Then, since BD=&— x, we shall... | |
| James Hale - 1829 - 115 pages
...Perpendicular. RULE 2. If the three Sides of a Triangle be given, its Area may be thus obtained: — **From half the sum of the three Sides, subtract each Side severally,** then extract the Square Root of the continued Product of the half sum and three remainder for the Area.... | |
| Thomas Conkling (W.) - 1831 - 275 pages
...three lines or sides. PROBLEM3. When the sides of a triangle are given, to find the content. . ' ' . **RULE. From half the sum of the three sides, subtract each side severally;** then, multiply that half sum and the three remainders together; and the sqipre root of the last product... | |
| William Kinne - 1831 - 248 pages
...the corner a true rightangle. RULE 2.— To find the area of any triangle when the thret RULE.—From **half the sum of the three sides subtract each side severally ; multiply** these three remainders and the said half sum continually together; then the square root of the last... | |
| Robert Gibson - 1832 - 290 pages
...problem will be evident. PROBLEM VIII. The three' tidet of a plane triangle given, to find the area. **RULE.* From half the sum of the three sides subtract each side severally;** take the logarithms of half the sum and three remainders, and half their total will be the logarithm... | |
| John Gummere - 1833 - 378 pages
...and the adjacent angles 37° 3(y, and 48° 15'? Ans. 6 A. 3 R. 18 P. PROBLEM V. To find the area of a **triangle when the three sides are given. RULE. From...sum and the three remainders continually together,** and the square root of the last product will be the area.* * DEMONSTRATION. Let ABC, Fig-. 69, be the... | |
| Francis Walkingame - 1833 - 204 pages
...base, 9 feet 4 inches ? ADB RULE 2. When the three sides only are given. — From half the sum of the **sides subtract each side severally: multiply the half...sum and the three remainders continually together** ; and the square root of their product will be the area. (3) The three sides of a triangular fish-pond,... | |
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