 | John Keill - Logarithms - 1723 - 444 pages
...oppofite Angle GH D ; or the inward Angles BGH, GHD on the fame Side together equal to two Right Angles. I fay the Right Line AB is parallel to the Right Line C D. For becaufe the Angle EGB is * equal to the An-- * tromtht gle GHD, and the Angle EGB \ equal to the An-... | |
 | Euclid, John Keill - Geometry - 1733 - 444 pages
...oppofite Angle GHD ; or the inward Angles BGH, GHD on the fame Side together equal to two Right Angles. I fay the Right Line AB is parallel to the Right Line CD. For becaufe the Angle EGB is * equal to the An- * fnm tit gle GHD, and the Angle EGB t equal to... | |
 | Robert Simson - Trigonometry - 1762 - 488 pages
...ftraight lines fhal! be parallel. Let the ftraight line EF which falls upon the two ftraight line* AB, CD make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For if it be not parallel, AB and CD being produced mall meet either towards... | |
 | Robert Simson - Trigonometry - 1775 - 534 pages
...thefe two ftraight lines fhall be parallel. Let the ftraight line EF, which falls upon the two ftraight lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD. For, if it be not parallel, AB and CD being produced fhall meet either towards... | |
 | Euclid - 1781 - 552 pages
...two' ftraight lines fhall be parallel. Let the ftraight line EF, which falls upon the two ftraight lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD. For, if it be not parallel, AB and CD being produced fliall meet either towards... | |
 | Robert Simson - Trigonometry - 1781 - 534 pages
...thefe two ftraight lines fhall be parallel. Let the ftraight line EF which falls upon the two ftraight lines AB, CD make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For if it be not parallel, AB and CD being produced fhall meet cither towards... | |
 | Euclid, James Williamson - Euclid's Elements - 1781 - 324 pages
...be parallel to one another. For let the ftraight line EF falling upon the two ftraight lines AB, CE> make the alternate angles AEF, EFD equal to one another. I fay that the Jlraight Kne AB is parallel to the ftraight line CD. For if not, AB and CD being produced... | |
 | John Keill - Geometry - 1782 - 476 pages
...oppofite Angle GHD ; or the inward Angles BGH, GHD, on the fame Side together, equal to two Right Angles. I fay, the Right Line AB is parallel to the Right Line C D. • Fran ibt For becauie the Angles EGB is * equal to the An$*' rv §le GHD, and the Angle EG B f equal... | |
 | Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...thefe two ftraight lines lhall be parallel. Let the flraight line EF, which falls upon the two ftraight lines AB, CD make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For, if it be not parallel, AB and CD being produced fliall meet either towards... | |
 | Alexander Ingram - Trigonometry - 1799 - 374 pages
...two ftraight lines fliall be parallel. Let the ftraight line EF, which falls upon the two ftraight lines AB, CD, make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For, if it be not parallel, AB and CD being produced, mall meet either towards... | |
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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. 
