 | Euclides - 1874 - 120 pages
...shall be parallel to one another. * Let the straight line EF, which falls on the two ' • straight lines AB, CD, make the alternate angles AEF, EFD equal to one another : AB shall be parallel to CD. / 2 For if it be not parallel, AB and CD being pro1 duced, will meet... | |
 | Euclides - 1874 - 342 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD, equal to one another. Then AB shall be parallel to CD. Construction. For, if AB be not parallel to CD, then AB and CD being... | |
 | Robert Potts - Geometry - 1876 - 446 pages
...these two straight lines shall be paralkl. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD, equal to one another. Then AB shall be parallel to CD. For, if AB be not parallel to CD, then AB and CD being produced will... | |
 | Āryabhaṭa - 1878 - 100 pages
...lines, it makes the alternate angles equal. Let tho straight lino EF, which fulls upon the two straight lines AB, CD, make the alternate angles AEF, EFD, equal to one ~ ~another. Then AB shall be parallel * to CD. ° For, if AB be not parallel to CD, AB and CD being produced will... | |
 | Moffatt and Paige - 1879 - 474 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls on the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another. Then AB shall be parallel to C D. IF o For, if AB be not parallel to CD, AB and CD, being produced,... | |
 | Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...straight lines shall be parallel to one another. Let the straight line EF, which falls on the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another : AB shall be parallel to CD. For if- not, AB and CD, being produced, will meet either towards B, D... | |
 | Euclides - Euclid's Elements - 1881 - 236 pages
...thete two liraight linen are parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another. Then AB / shall be parallel to C D. ± '*- * For, if AB be not parallel to CD, AB / and CD being produced... | |
 | Education - 1882 - 676 pages
...The particular enunciationof 1.27 is, ' Let the straight line EF' which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another ; then AB shall be parallel to CD.' 3. Prop. 32, Bk. I. Algebra. i. Substituting figures for letters,... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 428 pages
...ttraight lines shall be parallel to one another. Let the straight line EF, which falls on the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another : AB shall be parallel to CD. For if not, AB and CD, being produced, will meet either towards B, D... | |
 | Euclides - 1884 - 182 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another. Then AB shall be parallel to CD. For, if AB be not parallel to CD, AB and CD being produced will meet... | |
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Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD. 
