| Euclid - 1781 - 520 pages
...right angles to a given ftraight line, from a given point in the fame. SeeN. Let AB be a given ftraight **line, and C a point given in it; it is required to draw a** ftraight line from the point C at right angles to AB. , • 3. r. , Take any point D in AC, and a make... | |
| Robert Simson - Trigonometry - 1804
...angles to a given ftraight line, from a given point in the fame. See N. Let AB be a given ftraight **line, and C a point given in it ; it is required to draw a** ftraight line from the point C at right angles to AB. a. 3. i. Take any point D in AC, and make »... | |
| John Playfair - Euclid's Elements - 1804 - 440 pages
...at right angles to a given ftraight line, from a given point in the fame. Let AB be a given ftraight **line, and C a 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 to... | |
| John Mason Good, Olinthus Gilbert Gregory - 1813
...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 length,... | |
| Euclides - Euclid's Elements - 1816 - 528 pages
...divided into two equal parts in V the point D. Which was to be done. ' SecN. •3. I. "ll PROP. XI. PROB. **To draw a straight line at right angles to a given...given straight line, and C a point given in it ; it** U required to draw a straight line from the point C at right angles to AB. Take any point D in AC,... | |
| John Playfair - 1819 - 317 pages
...straight line AB is divided into two equal parts in llje point D. Which was to be done. A PROP. XI. PROB. **To draw a straight line at right angles to a given straight line, from a given point in** that line. Lei AB be a given straight line, and C a point given in it ; it is required to draw a straight... | |
| John Playfair - Circle-squaring - 1819 - 333 pages
...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. Let AB be a given straight line, and C a point given in it ; it is required to draw a straight... | |
| Peter Nicholson - Mathematics - 1825 - 372 pages
...line AB is divided into two equal parts in the point D. Which was to be done. Proposition XI. Problem. **To draw a straight line at right angles to a given...in the same. Let AB be a given straight line, and** С a point given in it ; it is required to draw a straight line from the point С at right angle»... | |
| Robert Simson - Trigonometry - 1827 - 513 pages
...line AB is divided into two equal parts in the point D. Which was to be done. PROP. XI. PROB. To drain **a straight line at right angles to a given straight...Let AB be a given straight line, and C a point given** See N. in it; it is required to draw a straight line from the point C at right angles to AB. DB t Constr.... | |
| John Playfair - Mathematics - 1829 - 186 pages
...base at right angles. For the triangles ACD, BCD are equal in all respects. PROPOSITION XI. PROBLEM. **To draw a straight line at right angles to a given...AB be a given straight line, and C a point given in** AB; it is required to draw a straight line from C at right angles to AB. Take any point D in AC, and... | |
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