The Elements of Euclid; viz. the first six books,together with the eleventh and twelfth, with an appendixThomas Tegg, 1841 - 351 σελίδες |
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Αποτελέσματα 1 - 5 από τα 9.
Σελίδα 216
... sphere is a solid figure described by the revolution of a semicircle about its diameter , which remains unmoved . XV . The axis of a sphere is the fixed straight line about which the semicircle revolves . XVI . The centre of a sphere is ...
... sphere is a solid figure described by the revolution of a semicircle about its diameter , which remains unmoved . XV . The axis of a sphere is the fixed straight line about which the semicircle revolves . XVI . The centre of a sphere is ...
Σελίδα 319
... spheres which have the same centre , to inscribe a polyhedron , the superficies of which shall not meet the lesser sphere . Let there be two spheres about the same centre A BOOK XII . PROP . XVII . 319.
... spheres which have the same centre , to inscribe a polyhedron , the superficies of which shall not meet the lesser sphere . Let there be two spheres about the same centre A BOOK XII . PROP . XVII . 319.
Σελίδα 320
... sphere . Let the spheres be cut by a plane passing through the centre ; the common sections of it with the spheres shall be circles ; because the sphere is described by the revolution of a semicircle about the diameter re- maining ...
... sphere . Let the spheres be cut by a plane passing through the centre ; the common sections of it with the spheres shall be circles ; because the sphere is described by the revolution of a semicircle about the diameter re- maining ...
Σελίδα 322
... sphere , composed of pyramids , the bases of which are the aforesaid quadrilateral figures , and the triangle YRX , and those formed in the like manner in the rest of the sphere , the common vertex of them all being the point A. And the ...
... sphere , composed of pyramids , the bases of which are the aforesaid quadrilateral figures , and the triangle YRX , and those formed in the like manner in the rest of the sphere , the common vertex of them all being the point A. And the ...
Σελίδα 324
... sphere to that plane : therefore the plane KBOS does not meet the lesser sphere . And that the other planes between the quadrants BX , KX fall without the lesser sphere , is thus de- monstrated . From the point A , draw AI perpendicular ...
... sphere to that plane : therefore the plane KBOS does not meet the lesser sphere . And that the other planes between the quadrants BX , KX fall without the lesser sphere , is thus de- monstrated . From the point A , draw AI perpendicular ...
Άλλες εκδόσεις - Προβολή όλων
The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ... Euclid Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
The Elements of Euclid: Viz. the First Six Books, Together With the Eleventh ... Euclid Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2023 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 23 - Any two sides of a triangle are together greater than the third side.
Σελίδα 40 - EQUAL triangles upon the same base, and upon the same side of it, are between the same parallels.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.