 | Charles Vyse - 1785 - 350 σελίδες
...RULE, 3. From Half the Burn of the three Sides fubtnuft each Side feverally ; multiply the Half Sura and the three Remainders continually together, and the Square Root of the laft ProducT. will be the Area 6f the Triangle, that is, * • Tc— 2. *=Half the Sum of the Sides.... | |
 | Charles Vyse - 1806 - 342 σελίδες
...given, to find the Area. RULE. 3. From Half the Sum of the three Sides subtract each Side severally ; multiply the Half Sum and the three Remainders continually together, and the Square Root of the last Produdl will be the Area of the Triangle, that is, ^++l= j = Half the Sum of the Sides'. 2 Then... | |
 | Robert Gibson - 1806 - 486 σελίδες
...following problem will be evident. PROBLEM VIII. Three sides of a plane triangle given t0 find the area. RULE. From half the sum of the three sides subtract each side severally ; take the logarithms of half the sum and three remainders, anil half their total will be... | |
 | Samuel Webber - 1808 - 466 σελίδες
...the three sides together, and take half the sum ; from the halt. sum subtract each side separately ; multiply the half sum and the three remainders continually together ; and the square root of the last product will be the area of the triangle. • A triangle is half a parallelogram of the same base... | |
 | 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 between... | |
 | 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 ; multiply... | |
 | Robert Gibson - 1811 - 580 σελίδες
...following problem will be evident. PROB. nil. The three sides of a filane triangle given to find the area. RULE. From half the sum of the three sides subtract each side severally ; take the logarithms of half the sum and three remainders, and half their total will be... | |
 | John Gummere - 1814 - 398 σελίδες
...48° 15'? Ans. 6A. 3R. 18P. PROBLE 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 severally ; multiply the half sum and the three remainders contiuually together, and the square root... | |
 | John Gummere - 1817 - 384 σελίδες
...the three sides are given. RULE. From half the sum of the three sides subtract each sifle severally ; multiply the half sum and the three remainders continually together, and the square root of the last product will be the area. * » DEMONSTRATION. Let ABC, Fig. 69, be the triangle. Bisect any two... | |
 | Robert Gibson - 1818 - 502 σελίδες
...problem will be evident. PROB. VIII. Tlie three sides of a plane triangle given, to find the area. RULE. From half the sum of the three sides subtract each side severally ; take the logarithms of the half sum and three remainders, and half their total will be... | |
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RULE. — From half the sum of the three sides... 
