 | William James Milne - Arithmetic - 1877 - 402 pages
...every triangle is one-half of a parallelogram of the same base and altitude. Therefore, RULE. — The area of a triangle is equal to one-half the product of the base by the altitude. When the three sides are given, the following is the rule: RULE. — From half the sum of the three... | |
 | William James Milne - Arithmetic - 1877 - 418 pages
...triangle is one-half of a parallelogram of the same base and altitude. Therefore, RULE.—The arear of a triangle is equal to one-half the product of the base by the attitude. When the three sides are given, the following is the rule: RULE.—From half the sum of the... | |
 | George Albert Wentworth - Trigonometry - 1882 - 234 pages
...8.004t6 2)8.00446 log tan J5 =9.00223 J5 = 5° 44' 23" B =11° 29' A =78° 31' TRIGONOMETRY. § 16. AREA OF THE EIGHT TRIANGLE. It is shown in Geometry that...if a and b denote the legs of a right triangle, and jFthe area, ,-, By means of this formula the area may always be found when a and b are given or have... | |
 | George Albert Wentworth - Trigonometry - 1882 - 232 pages
...=0.00000 colog (c + a) = 8.00416 2)8.00446 log tan IB =9.00223 TRIGONOMETRY. § 16. ABEA OF THE RIGHT TRIANGLE. It is shown in Geometry that the area of...denote the legs of a right triangle, and .F the area, F=\ab. By means of this formula the area may always be found when a and b are given or have been computed.... | |
 | George Albert Wentworth - Trigonometry - 1884 - 330 pages
...2). S. (10136 log tan \B - 9.00218 \B -5° 44' 21" B =11° 29' A =7S°31' § 16. AREA OF THE RIGHT TRIANGLE. It is shown in Geometry that the area of...if a and b denote the legs of a right triangle, and .Fthe area, ,-,_ By means of this formula the area may always be found when a and b are given or have... | |
 | George Albert Wentworth - 1887 - 372 pages
...=0.00000 colog (e + q) = 8.00436 2)8.00436 log tan \B =9.00218 B =5° 44' 21" B TRIGONOMETRY. § 16. AREA OF THE EIGHT TRIANGLE. It is shown in Geometry that...denote the legs of a right triangle, and F the area, ,-,. By means of this formula the area may always be found when a and b are given or have been computed.... | |
 | George Albert Wentworth - 1887 - 206 pages
...2)8.00436 logtan}fi =9.00218 }5 =5° 44' 21" B =11° 29' A =78° 31' TRIGONOMETRY. § 16. ABEA OF THE RIGHT TRIANGLE. It is shown in Geometry that the area of...denote the legs of a right triangle, and F the area, F=lab. By means of this formula the area may always be found when a and b are given or have been computed.... | |
 | George Albert Wentworth - 1887 - 346 pages
...= 8.00436 2 )S. 00438 log tan IB =9.0021.8 B =5° 44' 21" B TRIGONOMETRY. § 16. AREA OF THE RIGHT TRIANGLE. It is shown in Geometry that the area of...if a and b denote the legs of a right triangle, and area, By means of this formula the area may always be found when a and b are given or have been computed.... | |
 | George Albert Wentworth - Geometry, Analytic - 1887 - 264 pages
...triangle whose vertices are the points (2, 1), (3, - 2), (- 4, - 1). A ns. 10. It is shown in Elementary Geometry that the area of a triangle is equal to one-half the product of its base and its altitude ; hence this problem may be solved by performing the following operations... | |
 | New Jersey. State Board of Education - Education - 1888 - 694 pages
...equal." 3. Prove that the sum of the angles of any triangle is equal to two right angles. 4. Prove that the area of a triangle is equal to one-half the product of its base and altitude. 5. Prove that the side of a regular inscribed hexagon is equal to the radius... | |
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Geometry that the area of a triangle is equal to one-half the product of the base by the altitude. Therefore, if a and b denote the legs of a right triangle, and F the area... 
