 | 1803 - 558 pages
...Chriftian redemption into a mafs of complete abiunJUy ¡and nonfenfe? Yet it is not more demonftrable that the three an'gles of every plane triangle are together equal to two right angle?, than that all fuch addrefles from the mouth of a Calvinift are merely vix , et praterea n'ibil.... | |
 | Thomas Kerigan - 1828 - 776 pages
...opposite to the greatest side. — But, equal sides are subtended by equal angles, and conversely. The three angles of every plane triangle are, together, equal to two right angles, or 180 degrees. If one angle of a plane triangle be obtuse, or more than 90?, the other two are acute, or... | |
 | Thomas Kerigan - 1838 - 804 pages
...opposite to the greatest side. — But, equal sides are subtended by equal angles, and conversely. The three angles of every plane triangle are, together, equal to two right angles, or 180 degrees. If one angle of a plane triangle be obtuse, or more than 90?, the other two are acute, or... | |
 | James Pryde - 1867 - 506 pages
...definitions to find one of the acute angles, then the other is found by applying the fact, that all the angles of every plane triangle are together equal to two right angles, or 180° (Eue. I. 32). 130. When a side and one of the acute angles are given : RULE. — Apply the consequences... | |
 | James Smith - 1870 - 634 pages
...the 32nd Proposition of his First Book, in which he leaves it to be inferred that the three interior angles of every plane triangle are together equal to two right angles. Euclid nowhere proves this, nor could he, without the aid of Mathematics : and it was beyond the province... | |
 | Frederick Hungerford Bowman - 1882 - 352 pages
...science the idea of cause has no place. We cannot, for example, conceive of a cause why the sum of three angles of every plane triangle are together equal to two right angles, or why all the diameters of an ellipse are always bisected in its centre. The very essence of all physical... | |
 | A. P. W. Williamson - 1909 - 410 pages
...complement of an angle is what it differs from 90°, the supplement what it differs from 180°. 4. — The three angles of every plane triangle are together equal to two right angles, hence when two angles are known, their sum subtracted from 180° will give the third angle. 5. —... | |
 | 1904 - 500 pages
...Messrs. Isbister the first two parts of Mr. Rupert's, monograph. They contain five proofs that the sum of the three angles of every plane triangle are together equal to two right angles, 26 proofs of Eue. I. 47, and a chapter on the value of т, half of which is taken up with extracts... | |
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The three angles of every plane triangle are, together, equal to two right angles, or 180 degrees. 