 | United States. Army. Quartermaster Corps - 1930 - 1216 ページ
...when base and altitude are given. — Rule: Multiply the base by half the altitude. To find area when three sides are given. — Rule: From half the sum of the three sides, subtract each side separately: multiply the half sum and three remainders together, and extract the square root of the... | |
 | 1918 - 2826 ページ
...the Base and Perpendicular Height are given.—Multiply the base by half t ho height, or tier rcrsd. To find the Area of a Triangle when the Three Sides are given.—Take :^ tb* *om of the sides, subtract each side severally from this sum, then multiply thia... | |
 | Robert D. Mussey - 1987 - 164 ページ
...triangle, and half that product is the area. RULE 2. — When the length of the three sides are only given, from half the sum of the three sides subtract each...severally ; multiply the half sum and the three remainders continually togethtr; then estract the square root of the hist product, and it will give the area required.... | |
 | Hoy D. Orton - 1866 - 208 ページ
...problems are all very brief by canceling. To find (Jte area of any triangle when tJie three aides 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... | |
 | 1905 - 572 ページ
...anrl 68 sq. in. PROULEM 3. To find the area of a triangle whose three sides only are given. Rule i — From half the sum of the three sides subtract each side severally. 2 — Multiply the half sum and the three remainders continually together, and the square root of the... | |
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To find the Area of a Triangle when the Three Sides are given. Rule. — From half the sum of the three sides subtract each side separately. 
