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" RULE. From half the sum of the three sides subtract each side severally. "
The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 163
των Robert Gibson - 1832 - 348 σελίδες
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Modern Sheet-metal Workers' Instructor: Practical Geometry, Mensuration ...

Joseph H. Rose - 1906 - 309 σελίδες
...C Sum of sides To find the area of any oblique angled triangle when only the three sides are given. 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 is equal...

Geometry: Plane Trigonometry. Chain Surveying. Compass Surveying. Transit ...

International Correspondence Schools - 1906
...vertex. 47. To find the area of a triangle from the lengths of its three sides, apply the following: Rule. — From half the sum of the three sides subtract each side separately; multiply together the half sum and the three remainders and extract the square root of...

Kimball's Commercial Arithmetic: Prepared for Use in Normal, Commercial and ...

Gustavus Sylvester Kimball - 1911 - 418 σελίδες
...feet. Solution. (20+30+40) -5-2 =45; 45-20 = 25; 45-30 = 15; 45-40 = 5. ^45X25X15X5 = 290.4 + ft. 357. Rule. From half the sum of the three sides, subtract each side separately. Multiply the half sum and the three remainders together, and extract the square root of...

Practical Surveying and Elementary Geodesy, Including Land Surveying ...

Henry Adams - 1913 - 276 σελίδες
...three sides only of a triangle is given, the calculation is a little more complicated. The rule is : From half the sum of the three sides subtract each side severally, and multiply it and the three remainders together and take the square root for the area. This is usually...

Industrial Engineering: A Handbook of Useful Information for ..., Τόμος 1

William Miller Barr - 1918
...area divided by the base. 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. Multiply half the sum and the three remainders continually together, and the square root of the product...

Kent's Mechanical Engineers' Handbook, Τόμος 1

William Kent, Robert Thurston Kent - 1923 - 2247 σελίδες
...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.I. Administrative. II. Supply. III ...

United States. Army. Quartermaster Corps - 1930 - 1192 σελίδες
...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 - 120 σελίδες
...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 side severally ; multiply the half sum and the three remainders continually togethtr; then estract the square root...
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Orton's Lightning Calculator, and Accountant's Assistant: The Shortest ...

Hoy D. Orton - 1866 - 194 σελίδες
...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...

A Treatise on Practical Mensuration

Anthony Nesbit - 1859 - 450 σελίδες
...? Ans. £6. 4s. PEOBLEM V. To find the area of a triangle, the three sides only of which are given. RULE. 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...




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