 | Anthony Nesbit - 1847 - 492 σελίδες
...= 120°. ..9.93753 1 25 Log. 4.332 ....... ..0.63664 4 1.328 _40 AKP 13.120 Am. 4 1 13 PROBLEM III. To find the Area of a Triangle when the three Sides are given. From the half sum of the three sides subtract each side separately, add together the logarithms of the half... | |
 | P. O'Shaughnessy (Civil engineer) - 1848 - 110 σελίδες
...triangle whose three sides measure 20. 41, 24. 16, and 30. 12 chains. Ans. 24* 2r OP. Second Limma to find the area of a triangle when the three sides are given. Square the sum of any two sides, take the square of the third side from it ; take the diffc. of the... | |
 | James Bates Thomson - 1848 - 432 σελίδες
...half the altitude or perpendicular height. 626. To find the area of a triangle, the three sides being given. From half the sum of the three sides subtract each side respec. lively ; then multiply together half the sum and the three remainders, and extract the square... | |
 | John Ainslie - 1849 - 586 σελίδες
...and contained angle, or two angles and adjacent side of triangles, are given to find the area. 1 . To find the area of a triangle when the three sides are given. Rule. — Add the three sides, and take half the sum. From the half sum subtract each side successively,... | |
 | James Bates Thomson - 1849 - 438 σελίδες
...base is 50 ft., and its altitude 44 Ji. 626. To find the area of a triangle, the three sides being given. From half the sum of the three sides subtract each side respec* tively ; then multiply together half the sum and the three remain* ders, and extract the square... | |
 | Thomas Baker - 1850 - 244 σελίδες
...adjacent angles 60° 14' and 59° 46'; required the area by logarithms. Am. 13a. Ir. I2p. PROBLEM III. To find the area of a triangle when the three sides are given. Let a, b and c be the sides, and s their half sum, then A =: V s (s — a) (* — b) (s — c)By logarithms,... | |
 | Charles Davies - 1850 - 238 σελίδες
...a triangle whose base is 72,7 yards, and altitude 36,5 yards ? Ans. 1326,775 sq. yds. PROBLEM III. To find the area of a triangle when the three sides are known. RULE, I. Add the three sides together and take half their sum. II. From this half sum take each... | |
 | Charles Davies - 1850 - 218 σελίδες
...a triangle whose base is 72,7 yards, and altitude 36,5 yards ? Ans. 1326,775 sq. yds. PROBLEM III. To find the area of a triangle when the three sides are known. RULE, I. Add" the three sides together and take half their sum. II. From this half sum take... | |
 | John Radford Young - 1850 - 294 σελίδες
...and Altitude being given 21 To find the Area of a Triangle when the Base and Altitude are known 22 To find the Area of a Triangle when the Three Sides are known 24 Knowing any Two Sides of a Right-angled Triangle, to find the Third Side 28 To find the Area... | |
 | Oliver Byrne - 1851 - 310 σελίδες
...38 fe. 11 in. A " " 7 J 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 side severally. Multiply the half sum and the three remainders continually together, and the square root... | |
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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. Multiply the half sum and the three remainders together, and extract the square root of the product. 
