The school Euclid: comprising the first four books, by A.K. Isbister1862 |
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Side 95
... circle ABC , therefore AF must be equal to FC ; also , because G is assumed to be the centre of the circle ADE ... touches it in the inside or the outside . ( References Prop . I. 10 , 11 ; III . 1 ; Cor . 2 , 11. ) - First . Let the circle ...
... circle ABC , therefore AF must be equal to FC ; also , because G is assumed to be the centre of the circle ADE ... touches it in the inside or the outside . ( References Prop . I. 10 , 11 ; III . 1 ; Cor . 2 , 11. ) - First . Let the circle ...
Side 102
... circle , from the extremity of it , touches the circle ; ( III . def . 2 ) and that it touches it only in one point , because , if it did meet the circle in two , it would fall within it . ( III . 2. ) Also it is evident that there can ...
... circle , from the extremity of it , touches the circle ; ( III . def . 2 ) and that it touches it only in one point , because , if it did meet the circle in two , it would fall within it . ( III . 2. ) Also it is evident that there can ...
Side 103
... touches the circle . ( III . 16 , cor . ) Q. E. F. PROP . XVIII . - THEOREM . If a straight line touch a circle , the straight line drawn from the centre to the point of contact , shall be perpendicular to the line touching the circle ...
... touches the circle . ( III . 16 , cor . ) Q. E. F. PROP . XVIII . - THEOREM . If a straight line touch a circle , the straight line drawn from the centre to the point of contact , shall be perpendicular to the line touching the circle ...
Side 104
... circle , and from the point of contact a straight line be drawn at right angles to the touching line , the centre of ... touches the circle ABC , and FC is drawn from the assumed centre to the point of contact , therefore FC must be ...
... circle , and from the point of contact a straight line be drawn at right angles to the touching line , the centre of ... touches the circle ABC , and FC is drawn from the assumed centre to the point of contact , therefore FC must be ...
Side 118
... touch a circle , and from the point of contact a straight line be drawn cutting the circle ; then the angles made by this line with the line touching the circle shall be equal to the angles which are in the alternate segments of the circle ...
... touch a circle , and from the point of contact a straight line be drawn cutting the circle ; then the angles made by this line with the line touching the circle shall be equal to the angles which are in the alternate segments of the circle ...
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The school Euclid: comprising the first four books, by A.K. Isbister Euclides Uten tilgangsbegrensning - 1863 |
The School Euclid: Comprising the First Four Books, Chiefly from the Text of ... A. K. Isbister Ingen forhåndsvisning tilgjengelig - 2009 |
Vanlige uttrykk og setninger
AB is equal adjacent angles alternate angles angle ABC angle AGH angle BAC angle BCD angle EAB angle EDF angle equal angles CBA base BC BC is equal circle ABC constr DEMONSTRATION describe the circle diameter double equal angles equal straight lines equal to BC equilateral and equiangular exterior angle given circle given rectilineal angle given straight line gnomon greater inscribed interior and opposite less Let ABC Let the straight opposite angles parallel to CD parallelogram pentagon perpendicular Q. E. D. PROP rectangle AE rectangle contained rectilineal figure References Prop References-Prop remaining angle required to describe right angles segment semicircle side BC square of AC straight line AB straight line AC THEOREM touches the circle triangle ABC triangle DEF twice the rectangle
Populære avsnitt
Side 141 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz. either the sides adjacent to the equal...
Side 35 - 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 71 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square of the side subtending the obtuse angle, is greater than the squares of the sides containing the obtuse angle, by twice the rectangle contained by the side upon which, when produced, the perpendicular falls, and the straight line intercepted without the triangle, between the perpendicular and the obtuse angle. Let ABC be an obtuse-angled triangle, having the obtuse angle...
Side 33 - That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles.
Side 61 - 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 of...
Side 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Side 27 - ... shall be greater than the base of the other. Let ABC, DEF be two triangles, which have the two sides AB, AC, equal to the two DE, DF, each to each, viz.
Side 77 - An angle in a segment is the angle contained by two straight lines drawn from any point in the circumference of the segment to the extremities of the straight line which is the base of the segment.
Side 15 - The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles.