 | Euclides - 1852 - 152 pages
...interior and opposite angles. And the three interior angles of every triangle are equal to two riffht angles. Let ABC be a triangle, and let one of its...exterior angle ACD is equal to the two interior and opposite angles CAB, ABC; (2.) and the three interior angles of the triangle, viz. ABC, BCA, CAB, are... | |
 | Insurance - 1853 - 394 pages
...difference, d"u=u,— nua_t-\ — . wn.2— &c. 27. Show that, if a side of any triangle be produced (1) the exterior angle is equal to the two interior and...every triangle are together equal to two right angles. 28. Show that in any right-angled triangle, the square which is described upon the hypothenuse, that... | |
 | Euclides - Geometry - 1853 - 334 pages
...angle shall be equal to the two interior and opposite angles ; (2) the three interior angles shall be together equal to two right angles. Let ABC be a triangle, and let one of its sides BC be produced to D. Then (1) the exterior angle ACD shall be equal to the two interior and opposite angles ABC, BAC; (2)... | |
 | Euclides - 1853 - 146 pages
...equal to the two interior and opposite angles; and the three interior angles of every triangle are equal to two right angles. Let ABC be a triangle, and let one of its sides BC be produced to D; the exterior angle ACD is equal to the two interior and opposite angles CAB, ABC; and the three interior... | |
 | Royal Military Academy, Woolwich - Mathematics - 1853 - 400 pages
...interior and opposite angles ; and the three inferior angles of every triangle are equal to two rigJit angles. Let ABC be a triangle, and let one of its sides BC be produced to D ; the exterior angle ACD is equal to the two interior and opposite angles CAB, ABC, and the three interior... | |
 | Euclides - 1855 - 270 pages
...exterior angle is equal to the ttco interior and opposite angles ; and the three interior angles oj every triangle are together equal to two right angles....triangle, and let one of its sides BC be produced to D. Then the exterior angle ACD is equal to the two interior and opposite angles CAB, ABC. And the three... | |
 | Great Britain. Committee on Education - School buildings - 1855 - 976 pages
...any triangle he 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. 4. Equal triangles upon the same base and upon the same side of it, are between the same parallels.... | |
 | 1855 - 264 pages
...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. 4. Equal triangles upon the same hase and upon the same side of it are between the same parallels .... | |
 | John Playfair - Euclid's Elements - 1856 - 346 pages
...interior and opposite angles ; andlthe three interior angles of every triangle are equal to two right i Let ABC be a triangle, and let one of its sides BC be produced to D ; the exterior angle ACD is equal to the two interior and opposite angles CAB, ABC ; and the three... | |
 | W F. Richards - Elementary school teaching - 1856 - 198 pages
...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. 5. If a straight line be divided into any two parts, the square of the whole line is equal to the squares... | |
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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. 
