 | George Morris Philips, Robert Franklin Anderson - 1913 - 444 σελίδες
..."" ~~2~• 405. To find the area of a triangle when its three sides are given, apply the following : From half the sum of the three sides, subtract each side separately; multiply together the number of units in the half sum and in each of the three remainders, and extract the square... | |
 | Joseph Gregory Horner - 1914 - 460 σελίδες
...breadth. 2. Triangle. Multiply the base by the perpendicular height, and take half the product. Or: From half the sum of the three sides subtract each...remainders together; the square root of the product will be the area. 3. Trapezoid. Multiply half the sum of the parallel sides into the perpendicular... | |
 | 1918 - 840 σελίδες
..."perpendicular to it from the opposite vertex equals the area. Formula: — ^-£=area. (Fig. 6, page 51.) Or from half the sum of the three sides subtract each side separately, multiply together the half sum and the three remainders, the square root of the product is the area. This rule... | |
 | Hugh Findlay - 1920 - 586 σελίδες
...product of the side and perpendicular, and divide by one hundred and sixty. When three sides are given, from half the sum of the three sides subtract each...remainders together; the square root of the product divided by one hundred and sixty will give the number of acres in the field. When the piece of land... | |
 | Hugh Findlay - 1920 - 584 σελίδες
...product of the side and perpendicular, and divide by one hundred and sixty. When three sides are given, from half the sum of the three sides subtract each...remainders together; the square root of the product divided by one hundred and sixty will give the number of acres in the field. When the piece of land... | |
 | Joseph Gregory Horner - 1920 - 416 σελίδες
...dimensions are given in terms of the length of the three sides, then the area is found as follows :— From half the sum of the three sides, subtract each...remainders together, the square root of the product will be the area. Quadrilaterals. — A quadrilateral, Fig. 308, is a rectilineal figure with four... | |
 | Adolf Hopp, Neubecker, William, 1864-, William Neubecker - 1921 - 436 σελίδες
...the dimensions of the three sides are known or can be obtained. The rule in this case is as follows : From half the sum of the three sides subtract each side separately; find the continued product of the half sum of the sides and the three remainders, and the square root... | |
 | Peder Lobben - 1922 - 512 σελίδες
...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 sides, and the square... | |
 | United States. Army. Quartermaster Corps - 1930 - 1216 σελίδες
...— 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 product. Problems. — Base equals 4.75... | |
 | Commissioner of Agriculture for the West Indies - 1913 - 498 σελίδες
...the tree sides of the triangle are given, namely: from half the sum of the three . sides substract each side separately; multiply the half- sum and the...remainders together: the square root of the product will be the area. The area is always computed where possible by the first rule. In cases where it is... | |
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RULE. — From half the sum of the three sides, subtract each side separately; multiply the half -sum and the three remainders together; the square root of the product is the area. 
