 | Andrew Jackson Rickoff - 1886 - 688 σελίδες
...rule is sometimes necessary : When the three sides of a triangle are given, to find the area: 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. length of each of the two parallel sides of a / jy' The... | |
 | Edward Richard Shaw - 1887 - 488 σελίδες
...244. That which has length and breadth only. 245. Multiply the base by half the altitude. 246. 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. 247. Multiply the base by the altitude. 248. Multiply the... | |
 | Andrew Jackson Rickoff - 1888 - 464 σελίδες
...rule is sometimes necessary : When the three sides of a triangle are given, to find the area: 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. The Trapezoid.—Example. —Given the length of each of... | |
 | Charles Scott Venable - 1888 - 402 σελίδες
...equals half of the product of either side by the perpendicular to it from the opposite vertex; or, from half the sum of the three sides subtract each side separately ; multiply together the half sum and the three remainders ; and the square root of the product is the area. III.... | |
 | Thomas A. Rice - 1889 - 364 σελίδες
...three sides together. 6. To find area of triangle.— Multiply base by half the altitude. Or, from half the sum of the three sides subtract each side separately; multiply the half sum by the three remainders, and extract square root of product. 7. To find area of ellipse.—Multiply... | |
 | George Albert Wentworth - 1889 - 476 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 yda. 148.... | |
 | George Albert Wentworth - 1892 - 312 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 17J yds., altitude 4J yds. 148.... | |
 | Horatio Nelson Robinson - 1892 - 428 σελίδες
...= 60 ; 60 - 30 = 30 ; 60 - 40 = 20; 60 - 50 = 10. V60x30x20xl0 = 600 sq. ft., area. 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. 3. How many... | |
 | Horatio Nelson Robinson - 1892 - 428 σελίδες
...60 ; 60 - 30 = 30 ; 60 - 40 = 20; 60-50 = 10. V60 x 30 x 20 x 10 = 600 sq. ft., area. 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. 3. How many... | |
 | George Albert Wentworth - 1894 - 318 σελίδες
...found as follows : From the half-sum of the sides subtract each side separately. Multiply the half-sura 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 17J yds., altitude 41 yds. 148.... | |
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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. 
