 | Moffatt and Paige - 1879 - 506 σελίδες
...sides are given. Rule. — Add the three sides together and take half the sum ; from this half sum subtract each side separately ; multiply the half sum and the three remainders together, and take the square root of the last product for the area. If the sides be denoted by a, b, c, and half... | |
 | James Elliot - 1879 - 118 σελίδες
...the three Sides an given. RULE. Add together the three sides, and halve the gum. From the half sum subtract each side separately. Multiply the half sum and the three remainders together. The square root of the product will be the area. NOTE 1. The first part of the work may be proved,... | |
 | Edward Olney - 1879 - 392 σελίδες
...altitude, or half of either multiplied into the oiher. 446. NOTE. — If the three sides only are given, from half the sum of the three sides subtract each side separately, multiply Hie half sum and these remainders together, and extract the square root of the product. The pupil cannot... | |
 | Edward Olney - 1879 - 404 σελίδες
...either multiplied into the other. 44o. NOTE. — If the three sides only are given, from half the gum of the three sides subtract each side separately, multiply the half sum and these remainders together, and extract the square root of the product. The pupil cannot see why this... | |
 | Samuel Mecutchen - 1880 - 262 σελίδες
...supply the deficiency with ciphers. RULES IN MENSURATION. SURFACES. To find the area of a triangle. FROM half the sum of the three sides, subtract each...three remainders together, and the square root of the product will be the area required. NOTE. — When the base and altitude are given, the area is equal... | |
 | Samuel Mecutchen - 1880 - 292 σελίδες
...supply the deficiency with ciphers. RULES IN MENSURATI0N. SURFACES. To find the area of a triangle. FROM half the sum of the three sides, subtract each...three remainders together, and the square root of the product will be the area required. NOTE. — When the base and altitude are given, the area is equal... | |
 | Edward Olney - 1880 - 236 σελίδες
...\ / \^ A f gether, as B and A'. Then the two make 446. NOTE. — If the three sides only are given, from half the sum of the three sides subtract each side separately, multiply the half sum and these remainders together, and extract the square root of the product. The pupil cannot see why this... | |
 | Popular educator - 1880 - 926 σελίδες
...calculation of the area of a triangle without finding its perpendicular, the three sides being given :— From half the sum of the three sides subtract each side separately. Then multiply the half sum by the three remainders successively, and the square root of the product... | |
 | Thomas Liddell Ainsley - 1880 - 866 σελίδες
...The area of a triangle may, however, be determined from its three sides by the following EULE LXV. From half the sum of the three sides, subtract each side separately ; then multiply the half sum and the three remainders together, and the square root of the latí product... | |
 | George Bruce Halsted - 1881 - 266 σελίδες
...= 113-581 square meters. Ans. J b 36, Given the three sides of a triangle, to find the area. Eule : From half the sum of the three sides subtract each...multiply the half sum and the three remainders together : the square root of the product will be the area. Formula : A = Vs (s — a) (s — 6) (s — c].... | |
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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. 
