 | Robert Simson - 1762 - 488 sider
...ri^ht angles to a given ftraight line, from a given point in the fame. : Let AB be a given ftraight line, and Ca point given in it; it is required to draw a ftraight line from the point C at right angles to AB. Take any point D in AC, and make » CE equal... | |
 | Euclid - 1781 - 552 sider
...at right angles to a given ftraight line, from a given point in the fame. Let AB be a given fhaight line, and Ca point given in it; it is required to draw a ftraight line from the point C at rig' angles to AB. Take any point D in AC, and » make CE equal to... | |
 | Robert Simson - 1781 - 534 sider
...from the given point C, i1 at right angles to the given ftraight line AB. Let AB be a given ftraight line, and Ca point given in it ? it is required to draw a ftraight line from the point C at right angles to AB. Becaufe DC is equal to CE, and FC common to the... | |
 | Euclid, John Playfair - 1795 - 462 sider
...at right angles to a given ftraight line, from ag¡Mpn point in the fame. Let AB be a given ftraight line, and Ca point given in it; it is required to draw a ftraight line from the point C at right angles to AB. Take any point D in AC, and a make CE equal to... | |
 | Robert Simson - 1804 - 530 sider
...at right angles to a given ftraight line, from a given point in the fame. Let AB be a given ftraight line, and Ca point given in it; it is required to draw a ftraight line from the point C at right angles to AB. Take any point D in AC, and make » CE equal... | |
 | Robert Simson - 1806 - 546 sider
...DB, and the straight line AB is divided into two equal parts in the point D. Which was to be done. PROP. XI. PROB. TO draw a straight line at right angles to a given straight line, from a given point in the same. See N. Let AB be a given straight line, and Ca point given in it; it is required to draw... | |
 | Euclid - 1810 - 554 sider
...parts in the point-D. Which was to be done. D See Note. a 3 , 8. J. H 10. Def. 1. PROP. XI. PROB. B TO draw a straight line at right angles to a given straight line, from a given poiijt in the same. Let AB be a given straight line, and Ca point given in it: it is required to draw... | |
 | John Mason Good - 1813 - 714 sider
...Prop. X. Prob. To bisect a given finite straight line, that is, to divide it into two equal part«. Prop. XI. Prob. To draw a straight line at right angles to a given straight line, from a given point in the same. Prop. XII. Prob. To draw a straight line perpendicular to a given straight line of an unlimited... | |
 | Euclides - 1814 - 560 sider
...DB, and the straight line AB is divided into two equal parts in 4the point D. Which was to be done. PROP. XI. PROB. To draw a straight line at right angles to a given straight line, from a given point in the same. SeeN. Let AB be a given straight line, and Ca point given in it; it is required to draw a... | |
 | John Playfair - 1819 - 350 sider
...line AB is divided into two equal parts in 1he point D. Which was to be done. PROP. XL PROB. To dram a straight line at right angles to a given straight line, from a given point in that line. Take any point D in AC, and (3. 1.) make CE equal to CD, and upon DE describe (1. 1.) the equilateral... | |
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PROP. XI. PROB. To draw a straight line at right angles to a given straight line, from a given point in that line. Let AB be a given straight line, and Ca point given in it; it is required to draw a straight line from the point C at right angles to AB. 
