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 10000, and Tables of Sines, Tangents, and Secants, Both Natural and ArtificialJ. Murray, no. 32. Fleetstreet; and C. Elliot, Parliament-square, Edinburgh., 1776 - 264 páginas |
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Página 2
... segment 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 are contained by right lines . XXI . Three fided figures are fuch as are contained by ...
... segment 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 are contained by right lines . XXI . Three fided figures are fuch as are contained by ...
Página 47
... Segment of a circle being given , to defcribe the circle a 10ạ а б . т . Confti c 9 . ds . I. If required to defcribe the circle , whereof ABC is a fegment , bifect AC in D , draw DB at right angles to AC , and join AB ; then the angle ...
... Segment of a circle being given , to defcribe the circle a 10ạ а б . т . Confti c 9 . ds . I. If required to defcribe the circle , whereof ABC is a fegment , bifect AC in D , draw DB at right angles to AC , and join AB ; then the angle ...
Página 50
... circle , draw the right line DB ; then the angle DBF is equal to the angle in the alternate segment DAB ; and the angle DBE equal to DCB ; for , from the point of } of contact B , draw BA at right angles 50 THE ELEMENTS.
... circle , draw the right line DB ; then the angle DBF is equal to the angle in the alternate segment DAB ; and the angle DBE equal to DCB ; for , from the point of } of contact B , draw BA at right angles 50 THE ELEMENTS.
Página 86
... segment next to the fide . A PRO P. IX . PRO B , a 3. I. b 31. I. C. a . T O cut off any part required from a given right line . Let AB be a given right line , it is required to cut off any part of it , as one third . From the point A ...
... segment next to the fide . A PRO P. IX . PRO B , a 3. I. b 31. I. C. a . T O cut off any part required from a given right line . Let AB be a given right line , it is required to cut off any part of it , as one third . From the point A ...
Página 132
... segment of the circle it ftands in ; if the re- maining segments are bifected , and triangles drawn , as before and this be continued till the fegments are less than the excess by which the circle EFGH exceeds the figure S. Let these be ...
... segment of the circle it ftands in ; if the re- maining segments are bifected , and triangles drawn , as before and this be continued till the fegments are less than the excess by which the circle EFGH exceeds the figure S. Let these be ...
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The Elements of Euclid: In Which the Propositions Are Demonstrated in a New ... Euclid Sin vista previa disponible - 2022 |
The Elements of Euclid: In Which the Propositions Are Demonstrated in a New ... Euclid Sin vista previa disponible - 2022 |
The Elements of Euclid: In Which the Propositions Are Demonstrated in a New ... Euclid Sin vista previa disponible - 2015 |
Términos y frases comunes
ABCM angle ABC angle BAC arch bafe baſe becauſe bifect 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 reafon fecond fegment femicircle fides fimilar folid angle fome fore fquare of AC fubtending given right line greater infcribed join lefs leſs Let ABC magnitudes oppofite parallel parallelogram perpendicular plain angles plain paffing polygon prifms Prop pyramid rectangle right angles right line AB right lined figure Secant Sine ſphere ſquare Tang tangent thefe THEOR theſe triangle ABC triplicate ratio Wherefore whofe ΙΟ
Pasajes populares
Página 93 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides. Let AC, CF be equiangular parallelograms, having the angle BCD equal to the angle ECG ; the...
Página 78 - ... 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.
Página 88 - 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.
Página 99 - BAC was proved to be equal to ACD : Therefore the whole angle ACE is equal to the two angles ABC, BAC...
Página 19 - 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.
Página 75 - 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 DE equal...
Página 88 - ... 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.
Página 99 - 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.
Página 106 - ... but BD, BE, which are in that plane, do each of them meet AB ; therefore each of the angles ABD, ABE is a right angle ; for the same reason, each of the angles CDB, CDE is a right angle: and because AB is equal to DE, and BD...
Página 73 - RATIOS that are the same to the same ratio, are the same to one another. Let A be to B as C is to D ; and as C to D, so let E be to F ; A is to B, as E to F.