Geometrical Problems Deducible from the First Six Books of Euclid: Arranged and Solved: to which is Added an Appendix Containing the Elements of Plane Trigonometry ...J. Smith, 1827 - 377 sider |
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Resultater 1-5 af 100
Side ii
... line given in position ; to determine the locus of the points of section , which divide them in a given ratio . 13. A straight line being drawn parallel to one of the lines con- taining a given angle , and produced to meet the other ...
... line given in position ; to determine the locus of the points of section , which divide them in a given ratio . 13. A straight line being drawn parallel to one of the lines con- taining a given angle , and produced to meet the other ...
Side v
... line be drawn to touch a circle , and be parallel to a chord ; the point of contact will be the middle point of the arc cut off by that chord . COR . 1. Parallel lines placed in a circle cut off equal parts of the circumference . COR ...
... line be drawn to touch a circle , and be parallel to a chord ; the point of contact will be the middle point of the arc cut off by that chord . COR . 1. Parallel lines placed in a circle cut off equal parts of the circumference . COR ...
Side vi
... drawn ; the locus of their points of bisection will be a circle . 12. If on ... parallel . 15. Through three given points which are not in the same straight ... drawn , meeting a diameter ; the points of intersection are equally distant ...
... drawn ; the locus of their points of bisection will be a circle . 12. If on ... parallel . 15. Through three given points which are not in the same straight ... drawn , meeting a diameter ; the points of intersection are equally distant ...
Side vii
... draw to a straight line given in position , a line which shall be equal and parallel to a given straight line . 23. The bases of two given circular segments being in the same straight line ; to determine a point in it such , that a line ...
... draw to a straight line given in position , a line which shall be equal and parallel to a given straight line . 23. The bases of two given circular segments being in the same straight line ; to determine a point in it such , that a line ...
Side viii
... drawn meeting the circumferences ; the part of it intercepted between the circumferences will be bisected by the ... parallel . 34. If two circles touch each other externally or internally ; any two straight lines drawn through the point ...
... drawn meeting the circumferences ; the part of it intercepted between the circumferences will be bisected by the ... parallel . 34. If two circles touch each other externally or internally ; any two straight lines drawn through the point ...
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Almindelige termer og sætninger
ABCD angle ABC base bisect the angle centre chord circle ABC circles cut circumference describe a circle divided draw a line drawn parallel duplicate ratio equal angles equiangular Eucl extremities G draw given angle given circle given in position given line given point given ratio given square given straight line intercepted isosceles triangle Join AB Join AE Join BD Let AB Let ABC let fall line given line joining line required lines be drawn lines drawn mean proportional opposite sides parallel to AC parallelogram pendicular point of bisection point of contact point of intersection radius rectangle rectangle contained right angles right-angled triangle segments semicircle shewn tangent touching the circle trapezium triangle ABC whence
Populære passager
Side 10 - 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.
Side xv - 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 xxx - 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 of the other part.
Side 303 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Side 140 - 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...
Side 329 - CE is equal to the difference of the segments of the base made by the perpendicular.
Side 109 - If from a point, without a parallelogram, there be drawn two straight lines to the extremities of the two opposite sides, between which, when produced, the point does not lie, the difference of the triangles thus formed is equal to half the parallelogram. Ex. 2. The two triangles, formed by drawing straight lines from any point within a parallelogram to the extremities of its opposite sides, are together half of the parallelogram.
Side 164 - PROPOSITION I. PROBLEM. — To describe an equilateral triangle upon a given finite straight line. Let AB be the given straight line; it is required to describe an equilateral triangle upon it.
Side 281 - Given the vertical angle, the difference of the two sides containing it, and the difference of the segments of the base made by a perpendicular from the vertex ; construct the triangle.
Side 270 - AB describe a segment of a circle containing an angle equal to the given angle, (in.