 | Moffatt and Paige - 1879 - 428 pàgines
...etc. QED COR. 1. From this it is manifest, that if two straight lines cut each other, the angles which they make at the point where they cut, are together equal to four right angles. COR. 2. And, consequently, that all the angles made by any number of lines meeting in one point, are... | |
 | Isaac Todhunter - 1880 - 426 pàgines
...Corollary 1. From this it is manifest that, if two straight lines cut one another, the angles which they make at the point where they cut, are together equal to four right angles. Corollary 2. And consequently, that all the angles made by any number of straight lines meeting at one point,... | |
 | Euclides, Frederick Burn Harvey - 1880 - 178 pàgines
...straight lines cut one another, &c. QED COROLLARIES. 1. If two straight lines cut one another, the four angles they make at the point where they cut, are together equal to four right angles. 2. If any number of straight lines cut one another, all the angles made by them where they cut, are... | |
 | 1882 - 676 pàgines
...less. 3. Prop. 15, Book I. First Corollary. — If two straight lines cut one another, the angles which they make at the point where they cut are together equal to four right angles. Proof. — For the two angles on each side of one line are together equal to two right angles (Prop.... | |
 | Euclid, Isaac Todhunter - 1883 - 428 pàgines
...Corollary 1. From this it is manifest that, if two straight lines cut one another, the angles which they make at the point where they cut, are together equal to four right angles. Corollary 2. And consequently, that all the angles made by any number of straight lines meeting at one point,... | |
 | Euclides - 1884 - 182 pàgines
...mode of demonstration, it is manifest that, if two straight lines cut each other, the angles which they make at the point where they cut are together equal to four right angles. Cor. 2. — And, consequently, that all the angles made by any number of straight lines, meeting in... | |
 | Stewart W. and co - 1884 - 272 pàgines
...angles CEB, AED, are equal. COROLLARY 1. — From this it is manifest that, if two straight lines cut one another, the angles they make at the point where they cut each other are together equal to four right angles. COEOLLART 2. — And consequently that all the... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 pàgines
...[Ax. 3. In the same way it may be shown that L CEB= L AED. COROLLARY I.— If two straight lines cut one another, the angles they make at the point where...together equal to four right angles. COROLLARY II.— All the angles made by any number of straight lines meeting at one point are together equal to four... | |
 | Euclid - 1892 - 460 pàgines
...COROLLARY 1. From this it is manifest that, if two straight lines cut one another, the angles which they make at the point where they cut, are together equal to four right angles. COROLLARY 2. Consequently, when any number of straight lines meet at a point, the sum of the angles made by consecutive... | |
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Cor. 2. And consequently that all the angles made by any number of lines meeting in one point, are together equal to four right angles. 
