 | Euclid - Geometry - 1810 - 554 pages
...cut by the plane « 16. 11. AC, their common sections AB, CD are parallel *. Again,, because the Jwo parallel planes BF, AE are cut by the plane AC, their common sections AD, BC are parallel * : and AB is parallel to CD ; therefore AC is a parallelogram. In like manner,... | |
 | Euclides - 1816 - 588 pages
...BG, CE, are cut by the 3 16.11. plane AC, their common sections AB, CD, are parallel*. Again, because the two parallel planes BF, AE are cut by the plane AC, their common sections AD, BC are parallel a : And AB is parallel to CD; therefore AC is a parallelogram. In like manner,... | |
 | John Playfair - Circle-squaring - 1819 - 350 pages
...the plane ACr \ \ | E1 D \ \ their common sections AB, CD are parallel (14. 2. Sup.). Again, because the two parallel planes BF, AE are cut by the plane AC, their common sections AD, BC are parallel (14. 2. Sup.) : and AB is parallel to CD ; therefore AC is a parallelogram. In... | |
 | Robert Simson - Trigonometry - 1827 - 546 pages
...CE, are cut by the plane AC, their common sections AB, CD*, are * ts. 11. parallel : again, because the two parallel planes BF, AE are cut by the plane AC, their common sections AD, BC* are parallel: and AB is parallel to CD; » I6.1t. therefore AC is a parallelogram. In like... | |
 | Euclid, Robert Simson - Geometry - 1829 - 548 pages
...BG, CE are cut by the plane AC, their common sections AB, CL) are parallel (16. 11.). Again, because the two parallel planes BF, AE are cut by the plane AC, their common section AD, BC are parallel (16. 11.); and AB is parallel to CD; therefore AC is a parallelogram. In... | |
 | John Playfair - Geometry - 1829 - 210 pages
...planes BG, CE are cut by the plane AC, their common sections AB, CD are parallel (11. 11); and because the two parallel planes BF, AE are cut by the plane AC, their common sec- A tions AD, BC are parallel. Hence AC is a parallelogram. In like manner it may be proved that... | |
 | Euclid - 1835 - 540 pages
...planes BG, CE, are cut by the plane AC, their common sections AB, CD are parallel ". Again, because the two parallel planes BF, AE are cut by the plane AC, their common sections AD, BC are parallel '. And AB is parallel to CD ; therefore AC is a parallelogram. In like manner,... | |
 | A. Bell - Conic sections - 1837 - 180 pages
...BG, CE, are cut by the plane AC, their common sections AB, CD, are parallel (1. 14). Again, because the two parallel planes BF, AE, are cut by the plane AC, their common sections AD, BC, are parallel ; and AB is parallel to CD ; B therefore AC is a parallelogram. In like l\ manner,... | |
 | Euclid, James Thomson - Geometry - 1837 - 410 pages
...CE are cut by the plane AC, their common sections AB, CD are (XI. 16.) parallel. Also, because the parallel planes BF, AE are cut by the plane AC, their common sections AD, BC are parallel : and AB, CD are parallel; therefore AC is a parallelogram. In like manner, it... | |
 | Robert Simson - Geometry - 1838 - 434 pages
...BG, CE are cut by the plane AC, their common sections AB, CD are parallel (16. 11.). Again, because the two parallel planes BF, AE are cut by the plane AC, their common section AD, BC are parallel (16. 11.) ; and AB is parallel to CD; therefore AC is a parallelogram.... | |
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CD; therefore AC is a parallelogram. In like manner, it may be proved that each of the figures CE, FG, GB, BF, AE, is a parallelogram... 
