 | Robert Simson - 1762 - 466 sider
...parallelogram, join AH, DF; and becaufe AB is parallel to DC, and BH to CF; the two flraight lines AB, EH, which meet one another, are parallel to DC and CF which meet one another and are not in the fame plane b. 10. ii. with the .other two; wherefore they contain equal angles b;... | |
 | Robert Simson - 1775 - 520 sider
...a parallelogram : Join AH, A DF ; and becaufe AB is parallel to DC, and BH to CF ; the two ftraight lines AB, BH, which meet one another, are parallel to DC and CF which meet one another, and are not in the fame plane with the other two ; wherefore they contain equal angles b ; the angle... | |
 | Euclid - 1781 - 520 sider
...is a parallelogram : Join AH, i)F; and becaufe AB is parallel to DC, and BH to CF ; the two ftraight lines AB, BH, which meet one another, are parallel to DC and CF which meet one another, and are not in the fame plane with the other two; wherefore they conb. IB. II. tain equal angles b... | |
 | Robert Simson - 1781 - 466 sider
...is a parallelogram. join AH, Dl.; and becaufe AB is parallel to DC, and BH to CF; the two ftraight lines AB, BH, which meet one another, are parallel to DC and CF which meet one another and are not in the fame plane with the other two ; -wherefore they contain equal angles b ; the angle... | |
 | Euclid, John Playfair - 1795 - 400 sider
...is a parallelogram : Tom AH, DF ; and becaufe AB is parallel to DC, and BH to CF ; the two ftraight lines AB, BH, which meet one another, are parallel to DC and CF, which meet one another ; wherefore, tho. the firfttwoare notinthefemeplane with the other two, they contain eb 9. 7. qua! angles b ; the... | |
 | Euclid, John Playfair - 1804 - 440 sider
...is a parallelogram : ioin AH, DF ; and becaufe AB s parallel to DC, and BH to CF ; the two ftraight lines AB, BH, which meet one another, are parallel...CF, which meet one another ; wherefore, though the firft two are not in the fame plane with the other two, they contain equal angle&b; the angle ABH is... | |
 | Robert Simson - 1804
...AE is a parallelogram. join AH, DF; and becaufe AB is parallel to DC, and BH to CF; the two ftraight lines AB, BH, which meet one another, are parallel to DC and CF which meet one another and are not in the fame plane tI. 10. ii. with the other two .t wherefore they contain equal angles... | |
 | John Playfair - 1806 - 311 sider
...manner it may be proved that each of the figures CE, FG, GB, BF, AE is a parallelogram. Join AH, DF. Because AB is parallel to DC, and BH to CF, the two straight lines AB, BH, which meet each other, are parallel to DC, ($F, which meet each other ; therefore the angle ABH is equal to the... | |
 | Robert Simson - 1806 - 518 sider
...a parallelogram. In like manner, it may be proved that each of the figures CE, FG, GB, BF, AE is a parallelogram : join AH, DF ; and because AB is parallel to DC, and BH, toCF; the two straight lines AB, BH which meet one another, are parallel to DC and CF which meet one... | |
 | Euclides - 1814
...opposite planes are similar and equal parallelograms. that each of the figures CE, FG, GB, BF, AE, is a parallelogram: Join AH, DF; and because AB is parallel...one another, are parallel to DC and CF, which meet c same plane with the other two: wherefore they contain * 10.1i. equal angles, h ; the angle ABH is... | |
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And AB is parallel to 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: Join AH, DF; and... 
