 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.  The Teaching of Geometry - الصفحة 182بواسطة David Eugene Smith - 1911 - عدد الصفحات: 339عرض كامل - لمحة عن هذا الكتاب
 | Seymour Eaton - 1899 - عدد الصفحات: 362
...point A, parallel to the given straight line BC. PROPOSITION 32. THEOREM If a side of any triangle be produced, the exterior angle is equal to the two...opposite angles; and the three interior angles of every triangle are equal to two riglit angles. Let ABC be a triangle, and let one of its sides BC be... | |
 | Great Britain. Education Department. Department of Science and Art - 1899 - عدد الصفحات: 348
...the triangles ADFand AEG are equal in area. (12.) 9. If the side of a triangle be produced, show that the exterior angle is equal to the two interior and opposite angles ; and that the three interior angles are equal to two right angles. Show that the exterior angles of any... | |
 | Canada. Department of the Interior - 1900 - عدد الصفحات: 564
...road. Marks. 12 12 12 12 12 14 12 14 PLANE GEOMETRY. Time, 3 hours. , Marks. 1. If a side of a triangle be produced, the exterior angle is equal to the two...opposite angles ; and the three interior angles of every triangle are together equal to two right angles. 1 2. Prove that in a right angle triangle the... | |
 | Eldred John Brooksmith - 1901 - عدد الصفحات: 368
...extremities of the other diagonal on a given straight line. 3. Prove that if a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles, and that the three interior angles of every triangle are together equal to two right angles. From a vertex... | |
 | 1902 - عدد الصفحات: 678
...other two sides of the triangle, but shall contain a greater angle. (4) If 'he side of any triangle be produced, the exterior angle is equal to the two...and opposite angles ; and the three interior angles are together equal to two right angles. (5) Show how to describe a parallelogram which shall be equal... | |
 | 1903 - عدد الصفحات: 898
...prove that the twostraight lines are parallel. 6. If a side of any triangle be produced, pi-ove that the exterior angle is equal to the two interior and opposite angles, and that the three interior angles of the triangle are equal to two light angles. 7. Draw any triangle... | |
 | Herbert Spencer - 1906 - عدد الصفحات: 788
...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...opposite angles; and the three interior angles of every triangle are together equal to two right angles. " Let ABC be a triangle, and let one of its... | |
 | Institution of Civil Engineers of Ireland - 1906 - عدد الصفحات: 336
...abbreviations may be used, but the method of proof must be geometrical.] 1. If a side of a triangle is produced, the exterior angle is equal to the two interior...opposite angles ; and the three interior angles of every triangle are together equal to two right angles. If the side BC of a triangle ABC is produced... | |
 | Saskatchewan. Department of Education - 1906 - عدد الصفحات: 188
...line and surface. Illustrate by reference to a cube. 2. (a) If a side of any triangle be produced, (1) the exterior angle is equal to the two interior and opposite angles; and (2) the three interior angles of the triangle are together equal to two right angles. — I. 32. (6)... | |
 | University of Calcutta - 1907 - عدد الصفحات: 446
...figures in the margin indicate full marks. 1. If u side of any triangle be produced, the exterior anirlo is equal to the two interior and opposite angles ; and the three interior angles of every triangle are together eqnal to two right angles. The bisectors of the exterior angles of any... | |
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