The First Six, and the Eleventh and Twelfth Books of Euclid's Elements: With the Elements of Plane Trigonometry, and an Appendix in Four Books : With Notes and IllustrationsLongmans, Green, 1845 - 352 sider |
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Side viii
... semicircles touching each other , and having their diameters coinciding with two adja- cent sides , and each of them touching also one of the remaining sides of the square . 9. If the sides of a triangle be 13 , 14 , and 15 yards ...
... semicircles touching each other , and having their diameters coinciding with two adja- cent sides , and each of them touching also one of the remaining sides of the square . 9. If the sides of a triangle be 13 , 14 , and 15 yards ...
Side 4
... semicircle are called supplements of one another , or are said to be supplemen- tary . So also are two angles which ... semicircle . The following , which is Euclid's definition of the semicircle , will perhaps be preferred by some ...
... semicircle are called supplements of one another , or are said to be supplemen- tary . So also are two angles which ... semicircle . The following , which is Euclid's definition of the semicircle , will perhaps be preferred by some ...
Side 55
... semicircle BHF : produce DE to H , and join GH . Therefore , because the straight line BF is divided equally in G , and unequally in E , the rectangle BE.EF , and the square of EG , are equal ( II . 5 ) to the square of GF , or of GH ...
... semicircle BHF : produce DE to H , and join GH . Therefore , because the straight line BF is divided equally in G , and unequally in E , the rectangle BE.EF , and the square of EG , are equal ( II . 5 ) to the square of GF , or of GH ...
Side 58
... perpendicular to each other . It is easy to show by superposition , that a quadrant is half of a semicircle , and therefore a fourth part of the entire circle . 8. Similar sequents of circles are those which contain equal.
... perpendicular to each other . It is easy to show by superposition , that a quadrant is half of a semicircle , and therefore a fourth part of the entire circle . 8. Similar sequents of circles are those which contain equal.
Side 70
... semicircle , and the other in which it is not greater ; the latter of which is wanting in the Greck . T. That is , having all its angular points on the circumference , according to the cond definition of the fourth book . any two of its ...
... semicircle , and the other in which it is not greater ; the latter of which is wanting in the Greck . T. That is , having all its angular points on the circumference , according to the cond definition of the fourth book . any two of its ...
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The First Six and the Eleventh and Twelfth Books of Euclid's Elements: With ... James Thomson, gen,James Euclides Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
ABCD altitude angle ABC angle BAC angle equal BC is equal bisected centre chord circle ABC circumference cone const contained corollary cylinder describe a circle diagonal diameter divided draw equal angles equal to AC equiangular equilateral Euclid exterior angle fore fourth given circle given point given ratio given straight line greater half Hence hypotenuse inscribed join less Let ABC magnitudes manner multiple opposite parallel parallelepiped parallelogram perpendicular polygon polyhedron prism PROB.-To produced PROP proportional proposition pyramid radius rectangle rectilineal figure right angles Schol scholium segments semicircle sides similar solid angles square of AC straight line drawn tangent THEOR.-If third triangle ABC trigonometry triplicate ratio vertex vertical angle wherefore
Populære avsnitt
Side 130 - 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.
Side 45 - If a straight line be bisected, and produced to any point, the rectangle contained by the whole line thus produced, and the part of it produced, together with the square on half the line bisected, is equal to the square on the straight line which is made up of the half and the part produced.
Side 2 - A rhombus is that which has all its sides equal, but its angles are not right angles.
Side 50 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts may be equal to the square on the other part.
Side 38 - 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 7 - If two triangles have two sides of the one equal to two sides of the...
Side 27 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 27 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Side 15 - 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 36 - To describe a parallelogram equal to a given rectilineal figure, and having an angle equal to a given rectilineal angle. Let ABCD be the given rectilineal figure, and E the given rectilineal angle. It is required to describe a parallelogram equal to ABCD, and having an angle equal to E.