 | Frederick Augustus Griffiths - 1859 - 422 páginas
...To find the area of a triangle, whose three sides are given. From half the sum of the three side?, subtract each side severally; multiply the half sum, and the three remainders together, and the square root of the product will be the area required. Example. — Required the area... | |
 | Janes Boddely Keene - 1861 - 104 páginas
...feet ; what is its area in square yards ? Ans. 875 one-9th yds. When the Three Sides of a Triangle are given. RULE. — 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... | |
 | Daniel Adams - 1861 - 452 páginas
...the other ? Ans. 131 feet. To find the area of a triangle when the length of each side is given, — From half the sum of the three sides subtract each side severally ; then multiply the half sum and the three remainders continually together, and the square root of... | |
 | William Keane (gardener.) - 1861 - 252 páginas
...field is by measuring the three sides separately. The rule for finding the content by the pen is : From half the sum of the three sides, subtract each side severally, then multiply the half sum and the three remainders together, and the square root of the last product... | |
 | Oliver Byrne - 1863 - 600 páginas
...A " " 7J pa. = area required. To find the area of a triangle whose three sides only are given. — From half the sum of the three sides subtract each...severally. Multiply the half sum and the three remainders continually together, and the square root of the product will be the area required Required the area... | |
 | Stoddard A. Felter - 1864 - 412 páginas
...alt. area. 8ft. X 2 = 16 sq.ft. PROB. II. — The sides of a triangle being given to find the area. RULE. — From half the sum of the three sides subtract each side separately, then multiply the continued product of these remainders by half the sum of the sides, and... | |
 | Thomas Baker (C.E.) - 1865 - 174 páginas
...has been made, and the work must be repeated. TO FIND THE AREA OF A TRIANGLE FROM THE THREE SIDES. RULE. — From half the sum of the three sides subtract each side severally and reserve the three remainders ; multiply the half sum continually by the three remainders, and the... | |
 | Hoy D. Orton - 1866 - 202 páginas
...problems are all very brief by canceling. To find Cite area of any triangle when the, three sides 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 the... | |
 | Gerardus Beekman Docharty - 1867 - 474 páginas
...their included angle C=66° 30', to find the area. Aits. 11 acres, 2 roods, 11 perches. PROBLEM v. To find the area of a triangle when the three sides are given. From (prob. 4), Area of ABC= \ac sin. B. But, by (equation 51, Plane Trig.), 2 . sin. B=-Vs(s — a)(s—... | |
 | Septimus Tebay - 1868 - 168 páginas
...120; at 126, 155; at 198, 140; at 240, 134; at 300, o. Ans. 1 r. 20-35 p. THE TRIANGLE CONTINUED. IX. TO find the area of a triangle when the three sides are given. From half the sum of the sides subtract each side separately; multiply the half sum and the three remainders... | |
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To find the Area of a Triangle when the Three Sides are given. Rule. — From half the sum of the three sides subtract each side separately. 
