 | Andrew Bell - 1837 - 290 σελίδες
...PROPOSITION Xm. THEOREM. The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD ; these are either... | |
 | Euclides - 1837 - 112 σελίδες
...PROPOSITION XIII. Theorem, The angles which one straight line makes with another on one side of it, are either two right angles, or are together equal to two right angles. Fig.l. A Fig. 2. 1) Steps of the Demonstration. (In fig. 1, the Z DBA = Z ABC .'. each is a rt. Z).... | |
 | Euclid - 1838 - 470 σελίδες
...two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD ; these are either two right angles, or are together...angle CBA be equal to ABD, each of them is a right AEA B DB ABE, together, add the angle EBD to each of these equals ; therefore the angles CBE, EBD are... | |
 | Robert Simson - 1838 - 434 σελίδες
...two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD ; these are either two right angles, or are together...angle CBA be equal to ABD, each of them is a right AEA D B DB C (def. 1 0.) angle ; but, if not, from the point B draw BE at right angles (11. 1.) to... | |
 | Euclides - 1838 - 264 σελίδες
...•' PROP. XIII. THEOR. , , The angles which one straight line maket with another upon one side of it, are either two right angles, or are together equal to two right angles. .. . » Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD : these shall... | |
 | Euclides - 1841 - 378 σελίδες
...be done. PROP. XIII. THEORThe angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD; these shall be either... | |
 | University of Cambridge - 1841 - 546 σελίδες
...not to be employed.] t* THE angles which one straight line makes with another upon the une side of it are either two right angles, or are together equal to two right angles. 2. Describe an isosceles triangle, having each of the angles at the base double of the third angle.... | |
 | Euclides - 1842 - 316 σελίδες
...angle. PROP. XIII. THEOR. THE angles which one straight line makes with another upon one side of it are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD: these shall either... | |
 | John Playfair - 1842 - 332 σελίδες
...line AB. PROP. XIII. THEOR. The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two... | |
 | Chambers W. and R., ltd - 1842 - 744 σελίδες
...because, as lias been already stated, tbe angles made by one straight line falling upon another, arc either two right angles, or are together equal to two right angles ; therefore, the angles CBA, BAG, ACB, are equal to two right angles, or 180 degrees. There ore several... | |
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The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two right... 
