 If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles of every triangle are equal to two right angles.  Science Examination Papers - Page 243by Great Britain. Education Department. Department of Science and Art - 1899Full view - About this book
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...the given straight line BC. QEF PROPOSITION 32. THEOREM. If a side of any triangle &« produced, tlie exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle, are together equal to two right angles. Let ABC be a triangle,... | |
 | James Maurice Wilson - Geometry - 1868 - 132 pages
...parallels . ...... ..17 SECTION III. PLANE TRIANGLES. THEOREM 8. If one side of a triangle is produced, the exterior angle is equal to the two interior and opposite angles, and the three interior angles of any triangle are together equal ' to two right angles ii 20 THEOREM 9.... | |
 | General Medical Council (Great Britain) - 1869 - 402 pages
...common modern classification of Duties ? HIGHER MATHEMATICS. 1. If a side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. 2. In equal circles... | |
 | Richard Wormell - Geometry, Plane - 1870 - 304 pages
...the extremities draw lines parallel to the sides of the angle. If one side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three angles of a triangle are together equal to two right-angles. 125. Let the side AC of the... | |
 | Cambridge univ, exam. papers - 1870 - 272 pages
...FRIDAY, July 8, 1870. 11^ to 2. (ZBucltJj anto ©omc Sections. 1. IP a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. The sides AS, AC... | |
 | Alfred Challice Johnson - Spherical trigonometry - 1871 - 178 pages
...makes the alternate angles equal to one another. (Eue. I., 29.) 6. If a side of a triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles are equal to two right angles, or 180°. (Eue. I, 32.)' 7. The square upon... | |
 | Euclides - 1871 - 136 pages
...and C, so that BC may be equal to a given straight line. 4—2 If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles, and the three interior angles of every triangle are together equal to two right angles. J> Let ABC be a... | |
 | Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...equal to a given straight line. PROPOSITION XXXII. THEOREM. If a side of any triangle le produced, the exterior angle is equal to the two interior and opposite angles, and the three interior angles of every triangle are together equal to two right angles. Let ABC be a A... | |
 | Herbert Spencer - 1873 - 678 pages
...inconveniently long. We shall find a fitter one in Proposition xxxii. " If the side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. " Let ABC be a... | |
 | Herbert Spencer - Psychology - 1873 - 670 pages
...long. We shall find a fitter one in Proposition xxxii. " If the side of any triangle be produced, tho exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. " Let ABC be a... | |
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