The Elements of Euclid: In which the Propositions are Demonstrated in a New and Shorter Manner Than in Former Translations, and the Arrangement of Many of Them Altered, to which are Annexed Plain and Spherical Trigonometry, Tables of Logarithms from 1 to 10,000, and Tables of Sines, Tangents, and Secants, Natural and Artificialauthor, and sold, 1776 - 264 sider |
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Side ix
... contain the principles of trigonometry , as well as to explain the nature and use of the logarithmic canon . In ... contained in the propofitions , and what he intends by them easily discovered in practice . I have added a fhort ...
... contain the principles of trigonometry , as well as to explain the nature and use of the logarithmic canon . In ... contained in the propofitions , and what he intends by them easily discovered in practice . I have added a fhort ...
Side x
... contained by three triangles GAB , GBC , GCA , and common bafe ABC , which three triangles he neither proves equal nor fimilar ; but concludes , that the folid contained by the three triangles GAB , GBC , GCA , is not equal to the folid ...
... contained by three triangles GAB , GBC , GCA , and common bafe ABC , which three triangles he neither proves equal nor fimilar ; but concludes , that the folid contained by the three triangles GAB , GBC , GCA , is not equal to the folid ...
Side xi
... contained by the fame num- " ber of equal and fimilar planes alike fituated , and having none " of their folid angles contained by more than three plane angles , " are equal and fimilar to one another . " But this prop . C. will e ...
... contained by the fame num- " ber of equal and fimilar planes alike fituated , and having none " of their folid angles contained by more than three plane angles , " are equal and fimilar to one another . " But this prop . C. will e ...
Side xii
... contain the other ; and if the folid angle is con- B G E D F tained by more than three plane angles , e- qual and fimilar to one another , then it can be divided into angles which are contained by three equal and fi- milar plane angles ...
... contain the other ; and if the folid angle is con- B G E D F tained by more than three plane angles , e- qual and fimilar to one another , then it can be divided into angles which are contained by three equal and fi- milar plane angles ...
Side 2
... contained under any diameter , and the circumference cut off by that diameter . XIX . A fegment of a circle is a figure contained under a right line , and circumference cut off by that right line . XX . Right - lined figures are fuch as ...
... contained under any diameter , and the circumference cut off by that diameter . XIX . A fegment of a circle is a figure contained under a right line , and circumference cut off by that right line . XX . Right - lined figures are fuch as ...
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The Elements of Euclid: In Which the Propositions Are Demonstrated in a New ... Euclid Ingen forhåndsvisning - 2015 |
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ABCM angle ABC angle BAC arch bafe bafe BC baſe becauſe bifected Book XI circle ABCD circle EFGH circumference cofine common fection cone contained cylinder defcribe DEFH diameter draw drawn equal angles equal to AC equiangular equilateral equimultiples fame altitude fame multiple fame plain fame proportion fame reaſon fecond fegment femicircle fhall fides fimilar folid angle folid parallelopipedons fome fore fphere fquare of AC fubtending given right line greater infcribed join lefs leſs likewife magnitudes parallel parallelogram perpendicular plain paffing polygon polyhedron prifms PROP pyramid rectangle right angles right line AB right lined figure Secant Sine Tang tangent thefe THEOR theſe triangle ABC triplicate ratio Wherefore whofe bafe whoſe
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Side 80 - 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 72 - F, equal to them in number, be taken two and two in the fame ratio, and if their analogy be perturbate, viz. as A is to B, fo is E to F, and B to C as D to E ; and if the firft A be greater than the third C, then the fourth D will be greater than the fixth F ; if equal, equal ; and, if lefs, lefs.
Side 91 - BAC was proved to be equal to ACD : Therefore the whole angle ACE is equal to the two angles ABC, BAC...
Side x - If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles, these straight lines being continually produced, shall at length meet upon that side on which are the angles which are less than two right angles.
Side 54 - Let ABC be the given circle, and D the given straight line, not greater than the diameter of the circle. It is required to place in the circle ABC a straight line equal to D.
Side 9 - 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.
Side 13 - From this it is manifest that if one angle of a triangle be equal to the other two it is a right angle, because the angle adjacent to it is equal to the same two ; (i.
Side 69 - Let AB be the fame multiple of C, that DE is of F : C is to F, as AB to DE. Becaufe AB is the fame multiple of C that DE is of F ; there are as many magnitudes in AB equal to C, as there are in...
Side 91 - BGC: for the same reason, whatever multiple the circumference EN is of the circumference EF, the same multiple is the angle EHN of the angle EHF: and if the circumference BL be equal to the circumference EN, the angle BGL is also equal to the angle EHN ; (in.
Side 80 - ... reciprocally proportional, are equal to one another. Let AB, BC be equal parallelograms which have the angles at B equal, and let the sides DB, BE be placed in the same straight line ; wherefore also FB, BG are in one straight line (2.