 | John Gummere - 1828 - 404 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 - 404 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 - 246 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 - 256 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 - 124 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 - 302 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 - 380 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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... 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 half the sum of the three sides... 
