Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books and the First Twenty-one Propositions of the Eleventh Book ...T. Stevenson, 1845 - 199 sider |
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Side 25
... falling upon two other straight lines makes the alternate angles equal to one another , these two straight lines shall be parallel . Let the straight line EF , which falls upon the two straight lines AB , CD , make the alternate angles ...
... falling upon two other straight lines makes the alternate angles equal to one another , these two straight lines shall be parallel . Let the straight line EF , which falls upon the two straight lines AB , CD , make the alternate angles ...
Side 26
... fall upon two parallel straight lines , it makes the alternate angles equal to one another ; and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together ...
... fall upon two parallel straight lines , it makes the alternate angles equal to one another ; and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together ...
Side 27
... falling upon them , make the interior angles on the same side less than two right angles , do meet together if con- t 12 Ax . tinually produced ; therefore the straight lines AB , CD , if produced far enough , shall meet ; but they ...
... falling upon them , make the interior angles on the same side less than two right angles , do meet together if con- t 12 Ax . tinually produced ; therefore the straight lines AB , CD , if produced far enough , shall meet ; but they ...
Side 28
... falls upon them , the exterior angle ACD is equal ‡ to the interior and opposite angle ABC ; But the angle ACE was shown to be equal to the angle BAC ; therefore the whole exterior angle ACD is equal to the two interior and opposite ...
... falls upon them , the exterior angle ACD is equal ‡ to the interior and opposite angle ABC ; But the angle ACE was shown to be equal to the angle BAC ; therefore the whole exterior angle ACD is equal to the two interior and opposite ...
Side 36
... falls upon the parallels AH , EF , the angles AHF , HFE are together equal to two right angles ; wherefore the angles BHF , HFE are less than two right angles : but straight lines which , with another straight line , make the interior ...
... falls upon the parallels AH , EF , the angles AHF , HFE are together equal to two right angles ; wherefore the angles BHF , HFE are less than two right angles : but straight lines which , with another straight line , make the interior ...
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Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books ... Euclid Uten tilgangsbegrensning - 1845 |
Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books ... Euclid Uten tilgangsbegrensning - 1845 |
Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books ... Euclid Uten tilgangsbegrensning - 1845 |
Vanlige uttrykk og setninger
ABCD adjacent angles angle ABC angle ACB angle BAC angle BCD angle DEF angle EDF angles equal base BC BC is equal bisected centre circle ABC Constr describe diameter double draw equal angles equal to F equiangular equimultiples ex æquali exterior angle fore four magnitudes fourth given circle given straight line gnomon greater ratio join less Let ABC Let the straight likewise meet multiple opposite angle parallel to BC parallelogram perpendicular plane polygon proportionals Q. E. D. PROPOSITION rectangle contained remaining angle right angles segment semicircle sides square of AC straight line AB straight line AC THEOR THEOR.-If three straight lines tiple touches the circle triangle ABC triangle DEF twice the rectangle wherefore
Populære avsnitt
Side 12 - If two triangles have two sides of the one equal to two sides of the...
Side 29 - THE straight lines which join the extremities of two equal and parallel straight lines, towards the same parts, are also themselves equal and parallel.
Side 143 - 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 69 - If a straight line touch a circle, and from the point of contact a straight line be drawn cutting the circle ; the angles which this line makes with the line touching the circle, shall be equal to the angles which are in the alternate segments of the circle.
Side 20 - If from the ends of the side of a triangle, there be drawn two straight lines to a point within the triangle, these shall be less than the other two sides of the triangle, but shall contain a greater angle. Let the two straight lines BD.
Side 102 - A LESS magnitude is said to be a part of a greater magnitude, when the less measures the greater; that is, ' when the less is contained a certain number of times
Side 44 - If a straight line be divided into any two parts, the squares of the whole line and of one of the parts are equal to twice the rectangle contained by the whole and that part, together with the square of the other part. Let the straight line AB be divided into any two parts at the point C : the squares of AB, BC shall be equal to twice the rectangle AB, BC, together with the square of AC.
Side 71 - The opposite angles of any quadrilateral figure described in a circle, are toe/ether equal to two right angles. Let ABCD be a quadrilateral figure in the circle ABCD : any two of its opposite angles are together equal to two right angles.
Side 66 - The straight line drawn at right angles to the diameter of a circle, from the extremity of it, falls without the circle...
Side 83 - 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.