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, 1821 - 438 σελίδες |
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Σελίδα ii
... given ratio . 11. From a given point , to draw a straight line which shall cut off from lines containing a given angle , segments that shall have a given ratio . 12. If from a given point any number of straight lines be drawn to a straight ...
... given ratio . 11. From a given point , to draw a straight line which shall cut off from lines containing a given angle , segments that shall have a given ratio . 12. If from a given point any number of straight lines be drawn to a straight ...
Σελίδα iii
... angle perpendicular to the bisecting line ; it will be harmonically divided . 22. If from a given point there be drawn three straight lines forming angles less than right angles , and from another given point without them a line be ...
... angle perpendicular to the bisecting line ; it will be harmonically divided . 22. If from a given point there be drawn three straight lines forming angles less than right angles , and from another given point without them a line be ...
Σελίδα iv
... given line , and their respective distances from the former points in a given ratio . 28. If a straight line be ... angle , and meet two lines given in position , so that the parts intercepted between those points and the lines may have ...
... given line , and their respective distances from the former points in a given ratio . 28. If a straight line be ... angle , and meet two lines given in position , so that the parts intercepted between those points and the lines may have ...
Σελίδα vi
... given semicircle , another semicircle be described , and from the extremity ... angle , and be terminated in that line . 17. If from the extremities of any ... given circle to place a straight line parallel to a given straight line , and ...
... given semicircle , another semicircle be described , and from the extremity ... angle , and be terminated in that line . 17. If from the extremities of any ... given circle to place a straight line parallel to a given straight line , and ...
Σελίδα vii
... given angle , the part intercepted between the circumferences of the circles may be equal to a given line . 24. If two chords of a given circle intersect each other , the angle of their inclination is equal to half the angle at the ...
... given angle , the part intercepted between the circumferences of the circles may be equal to a given line . 24. If two chords of a given circle intersect each other , the angle of their inclination is equal to half the angle at the ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD angle ABC angle equal BC is equal centre chord circle cutting circumference construct the triangle cosecant cosine describe a circle divided equation equiangular Eucl extremities find the value given angle given circle given difference given in position given line given point given ratio given rectangle given square given straight line Hence inscribed intercepted isosceles triangle Join AE least common multiple Let AB Let ABC let fall line given line joining lines be drawn lines drawn mean proportional meeting opposite side parallel to AC parallelogram pendicular point of intersection produced quadrant radius rectangle contained right angles right-angled triangle segments semicircle shewn sine squares of AC tang tangent transposition trapezium triangle ABC triangle required vertex vertical angle whence
Δημοφιλή αποσπάσματα
Σελίδα i - 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 xi - 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.
Σελίδα 319 - 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.
Σελίδα 150 - 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...
Σελίδα 204 - FC are equal to one another : wherefore the circle described from the centre F, at the distance of one of them, will pass through the extremities of the other two, and be described about the triangle ABC.
Σελίδα 115 - 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.
Σελίδα 14 - In one of the given equations obtain the value of one of the unknown quantities in terms of the other unknown quantity; Substitute this value in the other equation and solve.
Σελίδα 291 - AB describe a segment of a circle containing an angle equal to the given angle, (in.
Σελίδα 297 - 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.
Σελίδα 90 - If from any point in the base of an isosceles triangle perpendiculars...