The Elements of Euclid; viz. the first six books,together with the eleventh and twelfth, with an appendix |
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Page 67
... touch a circle , when it meets the circle , and being produced does not cut it . III . Circles are said to touch one another , which meet , but do not cut one another . IV . Straight lines are said to be equally distant.
... touch a circle , when it meets the circle , and being produced does not cut it . III . Circles are said to touch one another , which meet , but do not cut one another . IV . Straight lines are said to be equally distant.
Page 73
... touch another internally , they shall not have the same centre . Let the circle CDE touch the circle ABC inter- nally in the point C : they shall not have the same centre . For , if they have , let it be F ; join FC , and draw any ...
... touch another internally , they shall not have the same centre . Let the circle CDE touch the circle ABC inter- nally in the point C : they shall not have the same centre . For , if they have , let it be F ; join FC , and draw any ...
Page 78
... touch another internally in any point , the straight line which joins their centres being pro- duced , shall pass through that point . Let the circle ADE touch the circle ABC inter- nally in the point A , and let F be 78 EUCLID'S ELEMENTS .
... touch another internally in any point , the straight line which joins their centres being pro- duced , shall pass through that point . Let the circle ADE touch the circle ABC inter- nally in the point A , and let F be 78 EUCLID'S ELEMENTS .
Page 79
... touch each other externally in any point , the straight line which joins their centres shall pass through that point . Let the two circles ABC , ADE touch each other externally in the point A ; and let F be the centre of the circle ABC ...
... touch each other externally in any point , the straight line which joins their centres shall pass through that point . Let the two circles ABC , ADE touch each other externally in the point A ; and let F be the centre of the circle ABC ...
Page 80
... touch another in more points than one , whether it touch it on the inside or on the outside . For , if it be possible , let the circle EBF touch the circle ABC in more points than one , and first on the * 10. 11. inside , in the points ...
... touch another in more points than one , whether it touch it on the inside or on the outside . For , if it be possible , let the circle EBF touch the circle ABC in more points than one , and first on the * 10. 11. inside , in the points ...
Other editions - View all
The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ... Euclid No preview available - 2015 |
The Elements of Euclid: Viz. the First Six Books, Together With the Eleventh ... Euclid No preview available - 2023 |
Common terms and phrases
AB is equal AC is equal altitude angle ABC angle ACB angle BAC base BC bisect centre circle ABCD circle EFGH circumference common section cone cylinder demonstrated described diameter draw equal to F equiangular equilateral equimultiples exterior angle fore given rectilineal given straight line gnomon inscribed join less Let ABC meet multiple opposite angle parallel parallelogram parallelopiped perpendicular polygon prisms PROB proved pyramid ABCG pyramid DEFH Q. E. D. PROP rectangle contained rectilineal figure remaining angle right angles segment solid angle solid CD sphere square of AC straight line AC THEOR third three plane angles three straight lines tiples touches the circle triangle ABC triangle DEF triplicate ratio twice the rectangle wherefore whole
Popular passages
Page 173 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Page 56 - Iff a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Page 53 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Page 58 - IF a straight line be divided into two equal, and also into two unequal parts; the squares of the two unequal parts are together double of the square of half the line, and of the square of the line between the points of section.
Page 94 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Page 23 - Any two sides of a triangle are together greater than the third side.
Page 40 - EQUAL triangles upon the same base, and upon the same side of it, are between the same parallels.
Page 103 - 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 on the line which touches it.
Page 50 - PROP. I. THEOR. If there oe two straight lines, one of which is divided into any number of parts; the rectangle contained by the two straight lines, is equal to the rectangles contained by the undivided line, and the several parts of the divided line.
Page 28 - If two triangles have two angles of the one equal to two angles of the other, each to each, and also one side of the one equal to the corresponding side of the other, the triangles are congruent.