 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.  Practical Arithmetic - Σελίδα 335των Charles Scott Venable - 1888 - 376 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | Thomas Keith - 1810 - 478 σελίδες
...these four logarithms, is the logarithmical sine of half the angle sought. (H. 215.) OR, RULE III. From half the sum of the three sides subtract each side separately. Then add together, The logarithmica! co-secants of half the sum of the sides, and of the difference... | |
 | Andrew Mackay - 1811 - 162 σελίδες
...easily measured by the above method. In this case, therefore, the three sides are to be measured. Now from half the sum of the th'ree sides, subtract each side separately; then extract the square root of the product of half the sum of the sides by the three differences ;... | |
 | Thomas Keith - 1826 - 504 σελίδες
...these four logarithms, is the logarithmical sine of half the angle sought. (F. 184.) OR, RULE III. From half the sum of the three sides subtract each side separately. Then add together, The logarithmical co-secants of half the sum of the sides, and of the difference... | |
 | Dudley Leavitt - 1830 - 154 σελίδες
...the three sides of a triangle are given, the area may be found thus, without a perpendicular. Erom half the sum of the three sides, subtract each side separately ; multiply the half sum and 3 remainders continually together, and the square root of the last product will be... | |
 | Ira Wanzer - 1831 - 408 σελίδες
...in Problem III. 2. When the three sides of the triangle are given, the area may be found as follows: From half the sum of the three sides subtract each side separately ; then multiply the said half sum and the three remainders continually together, and the square root... | |
 | Ireland commissioners of nat. educ - 1834 - 370 σελίδες
...feet Gi inches. PROBLEM V. Having the three sides of any Triangle given, to find its orea. RULE I. 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 last product... | |
 | Commissioners of National Education in Ireland - 1837 - 284 σελίδες
...feet 6^ inches. PROBLEM V. Having the three sides of any Triangle given, to find its area. RULE I. 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 last product... | |
 | Thomas Keith - 1839 - 498 σελίδες
...the sum of these four logarithms is the logarithmic sine of half the angle sought (422). RULE III. From half the sum of the three sides subtract each side separately. Then add together, mic sines of the difference between the half sum and each side containing the required... | |
 | John Hind - 1840 - 252 σελίδες
...Triangle. The area is equal to half the product of the base and the perpendicular altitude. (3) Triangle. 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 will be equal to the area. (4)... | |
 | Henry W. Jeans - 1842 - 138 σελίδες
....-.2 area. . 300832 and area 150416 VI. Three sides of a plane triangle being given, to find the area. From half the sum of the three sides, subtract each side separately. Add together, the log. of the hah0 sum, and the logarithms of the three remainders. Half the result... | |
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