| Euclid - Geometry - 1810 - 518 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 - 528 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 - Euclid's Elements - 1819 - 333 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 - 513 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... | |
| John Playfair - Geometry - 1829 - 186 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, Robert Simson - Geometry - 1829 - 516 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... | |
| 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 - 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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