Books Books ... 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... A Treatise on Surveying and Civil Engineering, Wherein Everything that is ... - Page 7
by P. O'Shaughnessy (Civil engineer) - 1848 - 98 pages ## Machinists' and Draftsmen's Handbook: Containing Tables, Rules and Formulas ...

Peder Lobben - 1922 - 512 pages
...circle of the same area. To Figure the Area of Any Triangle when Only the Length of the Three Sides is Given. RULE. From half the sum of the three sides subtract each side separately; multiply these three remainders with each other and the product by half the sum of the... ## Kent's Mechanical Engineers' Handbook, Volume 1

William Kent - 1923 - 1450 pages
...half the altitude. ;CLB 2. Multiply half the product of two sides by the eine of the included :t LE 3. From half the sum of the three sides subtract each side severally; tiply together the half sum and the three remainders, and extract the »re root of the product. 'he... ## Handbook for Quartermasters: Pts. I to V. Administrative. Supply ...

United States. Army. Quartermaster Corps - 1930 - 1216 pages
...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... ## The First American Furniture Finisher's Manual: A Reprint of "The Cabinet ...

Robert D. Mussey - 1987 - 164 pages
...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...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. . To... ## Orton's Lightning Calculator, and Accountant's Assistant: The Shortest ...

Hoy D. Orton - 1866 - 208 pages
...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... 