A companion to Euclid: being a help to the understanding and remembering of the first four books. With a set of improved figures, and an original demonstration of the proposition called in Euclid the twelfth axiom, by a graduate |
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Side 40
number of inches in bc ) , which , for the sake of brevity , is expressed by saying
that the area of the rectangle = AB X BC . ... the rectangle contained by the two
straight lines is equal to the G ! rectangles contained by the undivided line , and
the ...
number of inches in bc ) , which , for the sake of brevity , is expressed by saying
that the area of the rectangle = AB X BC . ... the rectangle contained by the two
straight lines is equal to the G ! rectangles contained by the undivided line , and
the ...
Side 41
If a straight line be divided A Ç B into any two parts , the rectangles contained by
the whole and each of the parts are together equal to the square of the whole line
. Proved by showing that ab % = figures AF + CE ; and that these are = AB X AC ...
If a straight line be divided A Ç B into any two parts , the rectangles contained by
the whole and each of the parts are together equal to the square of the whole line
. Proved by showing that ab % = figures AF + CE ; and that these are = AB X AC ...
Side 42
If a straight line be divided into two equal parts , and also into two unequal parts ,
the rectangle 4 contained by the unequal parts , together with the square of the
line between the points of section , is equal to the square of half the line . Proved
...
If a straight line be divided into two equal parts , and also into two unequal parts ,
the rectangle 4 contained by the unequal parts , together with the square of the
line between the points of section , is equal to the square of half the line . Proved
...
Side 43
If a straight line be di . vided into any two parts , the squares of the whole line and
of one of the parts are equal to twice the rectangle contained by the whole line
and that part , together with the square of the other part . E Proved by showing ...
If a straight line be di . vided into any two parts , the squares of the whole line and
of one of the parts are equal to twice the rectangle contained by the whole line
and that part , together with the square of the other part . E Proved by showing ...
Side 74
From a given circle to cut off a segment , which shall contain an angle equal to a
given rectilineal angle . ... If two straight lines within a circle cut each other , the
rectangle contained by the segments of one of them is equal to the rectangle ...
From a given circle to cut off a segment , which shall contain an angle equal to a
given rectilineal angle . ... If two straight lines within a circle cut each other , the
rectangle contained by the segments of one of them is equal to the rectangle ...
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Vanlige uttrykk og setninger
alternate angle contained angle equal applied Argument ad absurdum base bisect BOOK centre circumference coincides construction Demonstration described diameter directed divided draw drawn Edition Engravings equal equiangular equilateral Euclid extremities fall figure given circle given point given rectilineal given straight line greater HISTORY impossible inscribe interior joins learner least less meet Nature necessary opposite parallel parallelogram pass pentagon point of contact Problem produced proof PROPOSITION PROPOSITION VIII PROPOSITION XV Proved by showing READINGS rectangle contained right angles right line right Zs segment shows the supposition sides similarly square Steps straight line Suppose supposition is false Theorem touch triangle VOLUME whole whole line YOUNG
Populære avsnitt
Side 24 - If two triangles have two angles of the [one equal to two angles of the other, each to each, and one side equal to one side, namely, either t}le sides adjacent to the equal...
Side 45 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square of the other part.
Side 18 - If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Side 61 - From this it is manifest that the straight line which is drawn at right angles to the diameter of a circle from the extremity of it, touches the circle...
Side 37 - In any right-angled triangle, the square which is described upon the side subtending the right angle, is equal to the squares described upon the sides which contain the right angle.
Side 76 - IF from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square of the line which touches it.
Side 77 - If from a point without a circle there be drawn two straight lines, one of which cuts the circle, and the other meets it, and if the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, be equal to the square on GEOMETRY.
Side 72 - If a straight line touch a circle, and from the point of contact a straight line be drawn at right angles to the touching line, the centre of the circle shall be in that line.
Side 27 - If a straight line fall on two parallel straight lines, it makes the alternate angles equal to one another, and the exterior angle equal to the interior and opposite angle on the same side; and also the two interior angles on the same side together equal to two right angles.
Bibliografisk informasjon
| Tittel | A companion to Euclid: being a help to the understanding and remembering of the first four books. With a set of improved figures, and an original demonstration of the proposition called in Euclid the twelfth axiom, by a graduate |
| Forfatter | Euclides |
| Utgiver | John W. Parker, 1837 |
| Original fra | Oxford University |
| Digitalisert | 16. okt 2006 |
| Lengde | 88 sider |
| Eksporter sitat | BiBTeX EndNote RefMan |