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To draw a straight line at right angles to a given straight line, from a given point in the same.
The Element of Geometry - Seite 4
von John Playfair - 1836 - 114 Seiten
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## An Epitome of Navigation and Nautical Astronomy with the Improved Lunar Tables

Janet Taylor - 1842 - 592 Seiten
...are cutting the former in E and o. Join EG, then и will be the perpendicular required. PROBLEM IV. To draw a straight line at right angles to a given straight line, frDm a given point in the same. Let AB be the given straight line, and с the given point. From the...
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## Euclid's Elements of geometry [book 1-6, 11,12] with explanatory notes ...

Euclides - 1845 - 546 Seiten
...straight line AB is divided into two equal parts in the point DQBP PROPOSITION XI. PROBLEM. To dram a straight line at right angles to a given straight...the same. Let AB be the given straight line, and C a given point in it. It is required to draw a straight line from the point C at right angles to AB....
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## The First Six, and the Eleventh and Twelfth Books of Euclid's Elements: With ...

Euclid, James Thomson - 1845 - 382 Seiten
...centre: the line joining the two points of intersection will bisect AB. The proof is easy. PROP. XI. PROB.* — To draw a straight line at right angles...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 C at...
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## Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books ...

Euclid - 1845 - 218 Seiten
...AB is divided into two equal parts in the point D. Which was to be done. PROPOSITION XI. PHOB. — 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...
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## The Elements of Euclid, the parts read in the University of Cambridge [book ...

Euclides - 1846 - 292 Seiten
...to the base DB : Wherefore the straight line AB is bisected in the point D. o.. EF PROP. XI. PHOB. To draw a straight line at right angles to a given...the same. Let AB be the given straight line, and C a given point in it : it is required to draw from the point C a straight line at right angles to AB....
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## The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - 1846 - 128 Seiten
...DB. Therefore the str. line AB is divided into two = parts in the point D. PROP. X. PROB. 11. lEu. To draw a straight line at right angles to a given...from a given point in the same. Let AB be the given line, and C a given pt. in it; it is required to draw from C a str. line J_ AB. Take any point D in...
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## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

Euclid, John Playfair - 1846 - 334 Seiten
...DB, and the straight line AB is divided into two equal parts in the point D. DB 18 PROP. XI. PROS. 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 C a point given in it ; it is required to draw a straight...
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## The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - 1846 - 128 Seiten
...DB. Therefore the str. line AB is divided into two = parts in the point D. PROP. X. PROB. 11. lEu. To draw a straight line at right angles to a given straight line, from a given, point in tfosame. pt. in it; it is required to draw from C a sir. line _L AB. Take any point D in AC, make CE...
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## Practical Masonry, Or, A Theoretical and Operative Treatise of Building ...

Edward Shaw - 1846 - 342 Seiten
...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 A B. From с, as a centre, with any...
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## The first book of Euclid's Elements, simplified, explained and illustrated ...

Euclides - 1847 - 128 Seiten
...base DB (Prop. IV.) : ie the st. line bisected in the point D. — QEF PROP. XI. PROB. GEN. ENUN. — To draw a straight line at right angles to a given straight line from a given point in the same. PART. ENUN. — Let AB be the gn. st. line, and C a gn. pt. in it; then it is required to draw from...
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