 | Peter Nicholson - Mathematics - 1825 - 1046 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...straight line, from a given point 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... | |
 | Euclid - 1826 - 234 pages
...in it ; to draw a right line at right angles to the former. Let AB be the given right line, and ca given point in it, it is required to draw from the point ca right line at right *' angles to AB. Take any point D in AC, and make CE equal to cn,a and upon DE... | |
 | Euclides - 1826 - 226 pages
...point in it; to draw a right line at right angles to the former. Let AB be the given right line, and ca given point in it, it is required to draw from the point ca right line at right angles to AB. Take any point D in AC, and make CE equal to CD, a and upon DE describe... | |
 | Robert Simson - Trigonometry - 1827 - 546 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 line, from a given point in the same. 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... | |
 | Peter Nicholson - Masonry - 1828 - 276 pages
...required. PROBLEM III. From a given point out of a straight line to let fall a perpendicular. Fig. 3. Let AB be the given straight line, and c the given point ; it is required to draw a straight line from c perpendicular to AB. From c, as a centre, with any... | |
 | John Playfair - Geometry - 1829 - 210 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...straight line, from a given point in the same. Let AB be a given straight line, and C a point given in AB; it is required to draw a straight line from C at... | |
 | Euclid - 1835 - 540 pages
...is divided into two equal parts in the point D. Which was to be done. c4, 1. AJ) B PROP. XI. PROB. To draw a straight line at right angles to a given...straight line, from a given point in the same. Let AB be a given straight line, and C a point given in it; See N. it is required to draw a straight line from... | |
 | John Playfair - Geometry - 1836 - 148 pages
...straight line AB is divided into two equal parts in the point C. Which was to be done. PROP. IX. PROB. To draw a straight line at right angles to a given...and C the given point in it ; it is required to draw a straight line from C, at right angles to AB. Take D E any point D in AC, and make CE equal to CD... | |
 | Andrew Bell - Euclid's Elements - 1837 - 290 pages
...4), and the straight line AB is divided into two equal parts in the point D. PROPOSITION XI. PROBLEM. To draw a straight line at right angles to a given...straight line, from a given point in the same. Let AB be a given straight line, and C a point given in it ; it is required to draw a straight line from the... | |
 | Euclid, James Thomson - Geometry - 1837 - 410 pages
...the base DB, and the line AB is bisected in the point I ) : 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. Let AB be a given straight line, and C a point given in it ; and E as centres with any radius greater than the... | |
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To draw a straight line at right angles to a given straight line, from a given point in the same. 
