 | 1845 - 472 pagine
...gare methods that have been considered quite logical ; still they are too subtle, both having recourse to the geometry of infinitesimals, what is quite unfitted...Scott. 5, Winchester-row, New-road, Feb. 7, 1845. NEW WORKS CONNECTED WITH tHK ARTS AND SCIENCES PUBLISHED IN FEBRUARY. The PENCIL of NATURE. By H. Fox... | |
 | Jeremiah Day - 1848 - 354 pagine
...Thomson's Geometry, 28, 1. 180o. The angles BCA and BCG are together equal to two right angles. 79. Cor. As the three angles of a plane triangle are equal to two right angles, that is, to 180° (Euc. 32. 1.) the sum of any two of them is the supplement of the other. So that... | |
 | Jeremiah Day - 1851 - 418 pagine
...are always equal to 180°. The angles BCA and BCG are together equal to two right angles. 79. Cor. As the three angles of a plane triangle are equal to two right angles, that is, to 180° (Euc. 32. 1.) the sum of any two*of them is the supplement of the other. So that... | |
 | David Stuart (D.D.) - 1853 - 196 pagine
...alone is happiness. Eternal and necessary truths are such as do not depend upon created substances ; as the three angles of a plane triangle are equal to two right angles. Contingent truths are such as relate to created things, as the solar system consists of the sun, and,... | |
 | Leartus Connor, Henry Alexander Cleland - 1879 - 534 pagine
...never quarrel about that which they know. There is not the least chance for an argument as to whether the three angles of a plane triangle are equal to two right angles; or as to whether a circumference is not, at every point, equally distant from its centre; but where... | |
 | 1890 - 674 pagine
...commanding attitude towards nature. He can enounce laws of existence and action which nature must obey. The three angles of a plane triangle are equal to two right angles, and it is impossible for nature ever to furnish a plane triangle with a greater or a less sum for its... | |
 | 1887 - 662 pagine
...said by one who holds to this distinction between known and existent that such a geometrical law as that the three angles of a plane triangle are equal to two right angles, is a truth that exists whether we know it or not. It is, we are told, a fact for all time eternal and... | |
 | American Institute of Instruction - 1889 - 290 pagine
...commanding attitude toward nature. He can announce laws of existence and action which nature must obey. The three angles of a plane triangle are equal to two right angles, and it is impossible for nature ever to furnish a plane triangle with a greater or a less sum for its... | |
 | American Institute of Instruction - 1889 - 286 pagine
...commanding attitude toward nature. He can announce laws of existence and action which nature must obey. The three angles of a plane triangle are equal to two right angles, and it is impossible for nature ever to furnish a plane triangle with a greater or a less sum for its... | |
 | 1891 - 658 pagine
...commanding attitude towards nature. He can enounce laws of existence and action which nature must obey. The three angles of a plane triangle are equal to two right angles, and it is impossible for nature ever to furnish a plane triangle with a greater or a less sum for its... | |
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As the three angles of a plane triangle are equal to two right angles, that is, to 180° (Euc, 32. 1.) the' sum of any two of them is the supplement of the other. 
