 | Alexander Russell Bond - 1904 - 572 σελίδες
...Parallelogram.—Area equals base multiplied by height. When three siiles are given, brorn the half sum of the three sides subtract each side separately;...the half sum and the three remainders together. The area It the square root of the product thus obtained. Triangle.—Base and height given. Multiply base... | |
 | 1905 - 558 σελίδες
...height given. Multiply base by height and divide by two. When three sides are given. From the half sum of the three sides subtract each side separately;...the half sum and the three remainders together. The area is the square root of the product thus obtained. TRAPEZIUM (a figure with two sides parallel and... | |
 | Thomas J. Foster - 1905 - 1056 σελίδες
...Triangle, to Find the Area.—Add the three sides' together, divide the sum by 2; from the half sum, subtract each side separately; multiply the half sum and the three remainders continuously together, and extract the square root of the product. Thus, if the triangle has three... | |
 | Joseph Gregory Horner - 1906 - 572 σελίδες
...the base.) The area may also be found if the lengths of the three sides of a triangle be given. From half the sum of the three sides, subtract each side...multiply the half sum and the three remainders together, and the square root of the product will be the area. This is more conveniently stated and easier remembered... | |
 | 1906 - 576 σελίδες
...area may also be found if the lengths of the three -ides of a triangle be given. From half the »urn of the three sides, subtract each side separately;...multiply the half sum and the three remainders together, and the square root of the product will be the area. This is more conveniently stated and easier remembered... | |
 | George Albert Wentworth, George Anthony Hill - 1886 - 364 σελίδες
...found as follows : From the half sum of the sides subtract each side separately. Multiply the half-sum and the three remainders together. The square root of the product is the area of the triangle. Find the area of a triangle, having given: 147. Base 17} yds., altitude 4f yds. 148.... | |
 | Gustavus Sylvester Kimball - 1911 - 444 σελίδες
...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...Multiply the half sum and the three remainders together, and extract the square root of the product. 1. How many acres in a triangular piece of land 40 rods... | |
 | George Morris Philips, Robert Franklin Anderson - 1913 - 520 σελίδες
...~2~' 453. 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... | |
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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. 1. Find the area of a triangle whose sides are 15, 20, 25 feet. 
