 | Robert Potts - 1868 - 434 pages
...equal, Let the two straight lines AB, CD cut one another in the point R. Then the angle AEC shall be equal to the angle DEB, and the angle CEB to the angle AED. c Because the straight line AE makes with CD at the point E, the adjacent angles CEA, AED ; these angles... | |
 | Euclides - 1874 - 120 pages
...equal. . Let the two ' ' straightlines AB, CD cut one another in the point E; the angle AEC shall be equal to the angle DEB, and the angle CEB to the angle AED. _ Because the straight line AE makes with the « • straight line CD the angles CEA, AED, these angles... | |
 | Euclides - 1874 - 342 pages
...equal. Let the two straight lines AB, CD cut one another in the point EThen the angle AEC shall be equal to the angle DEB, and the angle CEB to the angle AED. Demonstration. Because the straight line AE makes -with CD, at the point E, the adjacent angles CEA,... | |
 | Robert Potts - Geometry - 1876 - 446 pages
...equal. Let the two straight lines AB, CD cut one another in the point E. Then the angle AEC shall be equal to the angle DEB, and the angle CEB to the angle AED. C Because the straight line AE makes with CD at the point E, tto adjacent angles CEA, AED; these angles... | |
 | Moffatt and Paige - 1879 - 428 pages
...equal. Let the two straight lines AB, CD cut one another in the point E. Then the angle AEC shall be equal to the angle DEB, and the angle CEB to the angle AE D. Because the straight line AE makes with CD at the point E the adjacent angles CEA, AED, these... | |
 | Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...be equal. Let the two straight lines AB, CD cut one another at the point E; the angle AEC shall be equal to the angle DEB, and the angle CEB to the angle A ED. Because the straight line AE makes with the straight line CD the angles CEA, AED,theae angles... | |
 | Euclides - Euclid's Elements - 1881 - 236 pages
...or opposite angle• are equal. Let the two straight lines AB, CD, cut one another in the point E. The angle AEC is equal to the angle DEB, and the angle CEB to the angle A ED. Because the straight line AE makes with CD the two angles CEA, AED, these angles are together... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 428 pages
...15. THEOREM. Let the two straight lines AB, CD cut one another at the point^ ; the angle AEG shall be equal to the angle DEB, and the angle CEB to the angle AED. Because the straight line AEmakes with the straight £ ^\ line CD the angles CEA, \. .d.EZ>,these angles... | |
 | Henry S. Merrett - Surveying - 1885 - 444 pages
...two lines intersect each other as at E, Fig. 16a, the opposite angles are equal to each other : viz. the angle AEC is equal to the angle DEB; and the angle AED is equal to the angle CE B. Note. — This problem is the main principle on which large surveys... | |
 | Euclid - Geometry - 1892 - 460 pages
...equal. A Let the two straight lines AB, CD cut one another at the point E : then shall the angle A EC be equal to the angle DEB, and the angle CEB to the angle AED Proof. Because AE makes with CD the adjacent angles CEA, AED, therefore these angles are together equal... | |
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E, the adjacent angles CEA, AED; these angles are together equal to two right angles. (i. 13.) Again, because the straight line DE makes with AB... 
