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To bisect a given finite straight line, that is, to divide it into two equal parts. Let AB be the given straight line : it is required to divide it intotwo equal parts.
The synoptical Euclid; being the first four books of Euclid's Elements of ... - Página 14
por Euclides - 1853
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## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1847 - 340 páginas
...given angle may be divided into four equal parts, into eight, into sixteen, and so on. PROP. X. PROB. To bisect a given finite straight line, that is, to...the given straight line ; it is required to divide if into two equal parts. Describe (1. 1.) upon it an equilateral triangle ABC, and bisect (9. 1.) the...
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## The First Book of Euclid's Elements, Simplified, Explained, and Illustrated ...

Euclides - 1847 - 128 páginas
...doubling continually. A similar remark applies to the following Proposition. PROP. X. PROB. GEN. ENUN. — To bisect a given finite straight line ; that is, to divide it into two equal parts. PART. ENUN. — Let AB be the gn. st. line ; then it is required to bisect it. CONST. — Describe...
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## The definitions, postulates, axioms, and enunciations of the propositions of ...

Euclides - 1848 - 52 páginas
...PROP. IX. PROBLEM. To bisect a given rectilineal angle, that is, to divide it into two equal angles. PROP. X. PROBLEM. To bisect a given finite straight...line, that is, to divide it into two equal parts. PROP. XI. PROBLEM. To draw a straight line at right angles to a given straight line, from a given point...
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## Elements of Geometry and Conic Sections

Elias Loomis - 1849 - 252 páginas
...parts, such that the greater part may be a mean proportional between the whole line and the other part. Let AB be the given straight line; it is required to divide it into two parts at the point F, such that AB : AF:: AF:FB. At the extremity of the line AB, erect the perpendicular...
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## The first three books of Euclid's Elements of geometry, with theorems and ...

Euclid, Thomas Tate - 1849 - 120 páginas
...wherefore the angles CBD, DBE, and EBA are equal to one another. 2. To trisect a given straight line. Let AB be the given straight line: It is required to divide it into three equal parts. Upon AB describe (E. i. 1.) the equilateral triangle ABC; bisect (Ei 9.) the angles...
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## Mensuration, Mechanical Powers and Machinery: The Principles of Mensuration ...

Daniel Adams - 1849 - 142 páginas
...DF—CG, and draw the line CF, which will be parallel to AB. 5 PROBLEM II. To Used a given line, or to divide it into two equal parts. Let AB be the given line. With A as a center, and any radius greater than half of AB, describe arcs above and below AB,...
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## Elementary Geometry: With Applications in Mensuration

Charles Davies - 1850 - 218 páginas
...edge falls on B. Then, . j*L with a pen, or pencil, draw the line AB. B PROBLEM IV. To bisect a given line : that is, to divide it into two equal parts Let AB be the given line to be divided. With A as a centre, and radius greater than half of AB, describe an arc IFE. Then,...
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## Elementary Geometry: With Applications in Mensuration

Charles Davies - 1850 - 236 páginas
...same edge falls on B. Then, with a pen, or pencil, draw the line AB. B PROBLEM IV. To bisect a given line: that is, to divide it into two equal parts Let AB be the given line to be divided. With A as a centre, and radius greater than half of AB, describe an arc IF E. Then,...
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## The First Two Books of the Elements of Euclid ... with Additional Figures ...

Euclides - 1852 - 152 páginas
...rectangle contained by the whole, and one of the parts, shall be equal to the square of the other part. Let AB be the given straight line ; it is required to divide it into two parts, so that the rectangle contained by the whole, and one of the parts, shall be equal to the square...
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## The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick

Royal Military Academy, Woolwich - 1853 - 400 páginas
...rectilineal angle • BAC is bisected by the straight line AF. Which wa» to be done. PROPOSITION X. PROB. To bisect a given finite straight line, that is, to...required to divide it into two equal parts. Describe (1. i.) upon it an equilateral triangle ABC, and bisect (9. i.) the angle ACB by the straight line...
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