 | 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 side separately ; multiply the half sum and the three remainders together, and the square root of the product will... | |
 | 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... | |
 | Montagu H. Foster - 1881 - 182 σελίδες
...2. Triangle. The area equals half the product of the %ase and perpendicular altitude. 3. Triaiigle. From half the sum of the three sides subtract each side separately, multiply the half sum by these three remainders, and extract the square root of the product. 4. Trapezium.... | |
 | 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 side separately; multiply the half sum and the three remainders together : the square root of the product will be the... | |
 | William Dodds - 1883 - 198 σελίδες
...find the length of the base. 69. To fiiid the area of a triangle when the three are given. RULE. 1°. From half the sum of the three sides subtract each side separately. 2°. Multiply the half sum and the throe remainders continually together. 3°. Take the square root... | |
 | Daniel W. Fish - 1883 - 364 σελίδες
...area. 2. Find the area of a triangle whose base is 20 ft. and each of the other sides 15 ft. RULE. — From half the sum of the three sides subtract each side separately j multiply the half-sum and the three remainders together; the square root of the product is the area.... | |
 | Daniel W. Fish - 1883 - 348 σελίδες
...area. 2. Find the area of a triangle whose base is 20 ft. and each, of the other sides 15 ft 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... | |
 | Euclides - 1884 - 434 σελίδες
...I. 41, 35 = Vs (s - a) (s - b) (s - c); which expression may be put into the form of a rule, thus : From half the sum 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... | |
 | Colin Arrott R. Browning - 1884 - 274 σελίδες
...2 area He'Sht = T5T(15) When we know the length of each side, but not the perpendicular. Rule : — From half the sum of the three sides subtract each side separately ; multiply the half sum and the three remainders continually together, and the square root of this... | |
 | William Waterston - 1884 - 314 σελίδες
...feet : then 4fl X 18 = 810 square feet. 6. The three fides of a triangle being given, toßnd the area: 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 will be the... | |
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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. 
