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 Bøker Bok 1–10 av 126 på The area of a triangle is equal to half the product of its base by its altitude. The area of a triangle is equal to half the product of its base by its altitude. Elements of Geometry and Trigonometry - Side 95
av C. Davies - 1867
Uten tilgangsbegrensning - Om denne boken Natural Philosophy: With an Explanation of Scientific Terms, and an ..., Volum 3

...arc *it, being very small, differs insensibly from the straight line joining the points «it; and the area of a triangle is equal to half the product of its base, and the perpendicular from its vertex. Again, the angle t E *! being very small, the perpendicular...
Uten tilgangsbegrensning - Om denne boken Elements of Geometry: With Practical Applications, for the Use of Schools

Timothy Walker - 1829 - 129 sider
...D=ABEF, and the area of ABCD==AB xB E, this being the measure of ABEF (100). 102. — The area of any triangle is equal to half the product of its base by its altitude — . By the altitude of a triangle we mean a perpendicular let fall from one of the vertices...
Uten tilgangsbegrensning - Om denne boken Library of Useful Knowledge: Natural philosophy, Volum 3

...Si t, being very small, differs insensibly from the straight line joining the points s, t ; and the area of a triangle is equal to half the product of its base, and the perpendicular from its vertex. Again, the angle t E s, being very small, the perpendicular...
Uten tilgangsbegrensning - Om denne boken An Elementary Treatise on Plane Trigonometry: With Its Applications to ...

Benjamin Peirce - 1835 - 97 sider
...known. Solution. Let ABC (fig. 2.) be the triangle to be measured, and G the given side. The area of the triangle is equal to half the product of its base by its altitude, or Area of AB C = £ bp. But, by (203), sin. b : sin. B : : c : b, vrhence (391) sin. Fig....
Uten tilgangsbegrensning - Om denne boken Mental and Practical Arithmetic: Designed for the Use of Academies and Schools

Charles Davies - 1838 - 288 sider
...The side BA or the side AC, opposite the right angle, is called the hypothenuse.' The area or content of a triangle is equal to half the product of its base by its altitude. EXAMPLES. 1. The base of a triangle is 40 yards and the perpendicular 20 yards : what is...
Uten tilgangsbegrensning - Om denne boken A Practical Treatise on Arithmetic: Wherein Every Principle Taught is ...

George Leonard (Jr.) - 1839 - 347 sider
...portions of the circumference so small that they may be considered straight lines. The surface of each triangle is equal to half the product of its base by its altitude, the altitude being the radius ; the surface of all these triangles, then, or the surface...
Uten tilgangsbegrensning - Om denne boken A Practical Treatise on Arithmetic, [etc.].

George Leonard - 1841 - 340 sider
...portions of the circumference so small that they may be considered straight lines. The surface of each triangle is equal to half the product of its base by its altitude, the altitude being the radius ; the surface of all these triangles, then, or The surface...
Uten tilgangsbegrensning - Om denne boken Arithmetic Designed for Academies and Schools: With Answers

Charles Davies - 1844 - 340 sider
...The side BA or the side AC, opposite the right angle, is called the hypothenuse. The area or content of a triangle is equal to half the product of its base by its altitude. EXAMPLES. 1. The base of a triangle is 40 yards and the perpen dicular 20 yards : what is...
Uten tilgangsbegrensning - Om denne boken An Elementary Treatise on Plane & Spherical Trigonometry: With Their ...

Benjamin Peirce - 1845 - 449 sider
...known. Solution. Let ABC (fig. 2) be the triangle to be measured, and c the given side. The area of the triangle is equal to half the product of its base by its altitude, or area of ABC = £bp. (273) But, by (130), sin. C : sin. B : : c : b, whence _ c sin. B...
Uten tilgangsbegrensning - Om denne boken An Elementary Treatise on Plane & Spherical Trigonometry: With Their ...

Benjamin Peirce - 1845 - 449 sider
...known. Solution. Let ABC (fig. 2) be the triangle to be measured, and с the given side. The area of the triangle is equal to half the product of its base by its altitude, or area of ABC = i bp. (273) But, by (130), sin. С : sin. В : : с : Ь, whence . с sin....
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