 | Jeremiah Day - 1814 - 304 σελίδες
...is, For the area is equal to ABxBC. .(Art. 513.) But A£=J3C, therefore, AB xBC=AB x AB^AB*. 518. The area of a triangle, is equal to half the product of the base and height. Thus the area of the triangle ABG, (Fig. 7.) is equal to half AB into GHorits equal JBC,... | |
 | Jeremiah Day - 1827 - 352 σελίδες
...that is, For the area is equal to ABXBC, (Art. 513.) BuUB=.BC, therefore, JlBxBC=AB-X.AB=AB ' 518. The area of a triangle is equal to half the product of the base and height. Thus the area of the triangle J1BG, (Fig. 7.) is equal to half AB into GH or its equal... | |
 | Charles Davies - 1836 - 296 σελίδες
...passing through the origin of co-ordinates, and we shall have fF(x)dx-—xy, which proves that the area of a triangle is equal to half the product of the base and perpendicular. 286. It is frequently necessary to find the integral or function, between certain... | |
 | Mechanics - 1837 - 350 σελίδες
...triangle are given, its area can easily be found. Thus, the writers on mensuration have shown, that the area of a triangle is equal to half the product of the base drawn into the perpendicular altitude ; consequently, if a be put to denote the area of the triangle... | |
 | Charles Davies - 1838 - 300 σελίδες
...passing through the origin of co-ordinates, and we shall have fF(x)dx-—xy, which proves that the area of a triangle is equal to half the product of the base and perpendicular. 286. It is frequently necessary to find the integral or function, between certain... | |
 | James Bates Thomson - 1844 - 266 σελίδες
...For the area is equal to AB x BC. (Art. 388.) But AB=BC, therefore, AB xBC=AB x AB=(AB) 2 . 393. The area of a triangle is equal to half the product of the base and height. Thus the area of the triangle ABG, (Fig. 7,) is equal to half AB into GH or its equal BC,... | |
 | Nathan Scholfield - 1845 - 894 σελίδες
...CH.) Scholium. If the base, instead of being exterior, should fall within the triangle, as ]?D, then the area of the triangle ABC is equal to half the product of the base BD into the sum of the perpendicu- A lire AF-j-CH let fall from the angles A anJ C on this... | |
 | Charles Davies - 1846 - 254 σελίδες
...parallelogram, having the same base and altitude. 15. What is the area of a triangle equal to? The area of a triangle is equal to half the product of...of the triangle ABC is equal to half the product of AB X CD. If the base of a triangle is 12, and the altitude 8 yards, the area will be 48 square yards.... | |
 | Jeremiah Day - 1847 - 358 σελίδες
...(Fig. 6,) is AB, that is, For the area is eoual to ABxBC. (Art. 513.) But AB=BC, therefore, 518. The area of a triangle is equal to half the product of the base and height. Thus the area of the triangle ABG, (Fig. 7.) is equal to half AB into GHor its equal BC,... | |
 | Jeremiah Day, James Bates Thomson - 1848 - 264 σελίδες
...o=(Al^2. For the area is equal to AB xBC. (Art. 388.) But AB=BC, therefore, AB xBC=AB x AB=(AB)2. 393. The area of a triangle is equal to half the product of the base and height. Thus the area of the triangle ABG, (Fig. 7,) is equal to half AB into GH or its equal BC,... | |
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The area of a triangle is equal to half the product of the base and height. 
