 | Benjamin Greenleaf - 1873 - 202 sider
...the altitude. If the three sides are given, from half the sum of the three sides subtract each side ; multiply the half sum and the three remainders together,...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 feet. 210... | |
 | Benjamin Greenleaf - 1874 - 206 sider
...altitude. If the three sides are given, from, half the sum of the three sides subtract each side ; multiply the half sum and the three remainders together,...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 feet. 210... | |
 | Henry Lewis (M.A.) - 1875 - 104 sider
...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 last product will be the area of the triangle. For practical purposes this rule may be more conveniently... | |
 | Samuel Mecutchen, George Mornton Sayre - 1877 - 200 sider
...the area of a triangle. RULE. From half the sum of the three sides, subtract each side separately; multiply the half sum and the three remainders together,...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 by half the... | |
 | John Barter (of the science and art coll, Plymouth.) - 1877 - 328 sider
...given, to find its area. Rule. — From half the sum of the three sides subtract each side separately, multiply the half sum and the three remainders together, and the square root of the last product will be the area of the triangle. Example. — Let AB = 30, A c = 40, B c = 50. 30 + 40... | |
 | Thomas Hunter - 1878 - 142 sider
...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) (AD—DB);... | |
 | Alfred Hiley - 1879 - 228 sider
...when the three sides are given. From half the 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 is the area. Note 1. — To find one dimension, either the base or the height, when the area of the... | |
 | Samuel Mecutchen - 1880 - 262 sider
...find the area of a triangle. FROM half the sum of the three sides, subtract each side separately ; multiply the half sum and the three remainders together,...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 by half the... | |
 | Samuel Mecutchen - 1880 - 270 sider
...find the area of a triangle. FROM half the sum of the three sides, subtract each side separately ; multiply the half sum and the three remainders together,...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 by half the... | |
 | Thomas Liddell Ainsley - 1880 - 866 sider
...the following EULE LXV. 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 latí product mill be the area of the triangle. For practical purposes this rule may he more conveniently... | |
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From half the sum of the three sides, subtract each side severally; multiply the half sum, and the three remainders together, and the square root of the product will be the area required. 
