 | Benjamin Greenleaf - 1868 - 340 sider
...area of a TRIANGLE, the three sides being given. side ; multiply the half sum and the three remainders together, and the square root of the product will be the area required. For, let ABC be a triangle whose three sides, AB, BC, AC, are given, but not the altitude... | |
 | Anthony Nesbit - 1870 - 578 sider
...found as fol. Iowa : From half the sum of the three sides subtract each side severally ; multiply the half 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 in particular cases; the... | |
 | Eli Todd Tappan - 1873 - 288 sider
...triangle each side be subtracted, and if these remainders and the half sum be multiplied together, then the square root of the product will be the area of the triangle. Let DEF be any triangle, DF being the base and EG the altitude. Let the extent of the several lines... | |
 | Benjamin Greenleaf - 1873 - 202 sider
...half the sum of the three sides subtract each side ; multiply the half sum and the three remainders together, and the square root of the product will be the area required. 1. Required the area of the triangle ABC, whose base, BC, is 210, and altitude, AD, is 190... | |
 | Benjamin Greenleaf - 1874 - 206 sider
...half the sum of the three sides subtract each side ; multiply the half sum and the three remainders together, and the square root of the product will be the area required. 1. Required the area of the triangle ABC, whose base, BC, is 210, and altitude, AD, is 190... | |
 | Lorenzo Fairbanks - 1875 - 472 sider
...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 root of the product will he the area. EXAMPLES. 1. Required the area of a triangle whose three sides are, respectively, 24,... | |
 | Samuel Mecutchen, George Mornton Sayre - 1877 - 200 sider
...sum of the three sides, subtract each side separately; multiply the half sum and the three remainders together, and the square root of the product will be the area required. Note. — When the base and altitude are given, the area is equal to the base multiplied... | |
 | Thomas Hunter - 1878 - 142 sider
...given. EULE. — From half the sum of the three sides subtract each side sepa~ rately : multiply the half sum and the three remainders continually together,...and the square root of the product will be the area required.* • Demonstration.—Let AC=c, CB=<7, and AB=6; and c»—d'=AD a —DB» (e+d) (f—d)=(AD+DB)... | |
 | Samuel Mecutchen - 1880 - 292 sider
...of the three sides, subtract each side separately ; multiply the half sum and the three remainders together, and the square root of the product will be the area required. NOTE. — When the base and altitude are given, the area is equal to the base multiplied... | |
 | Samuel Mecutchen - 1880 - 262 sider
...of the three sides, subtract each side separately ; multiply the half sum and the three remainders together, and the square root of the product will be the area required. NOTE. — When the base and altitude are given, the area is equal to the base multiplied... | |
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Multiply the half sum and the three remainders continually together, and the square root of the product will be the area... 
