Elements of Geometry;: Containing the First Six Books of Euclid, with Two Books on the Geometry of Solids. To which are Added, Elements of Plane and Spherical TrigonometryBell & Bradfute, and G. G. & J. Robinson, London., 1795 - 400 páginas |
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Página 8
... draw the straight b 1. Poft . lines b CA , CB to the points A , B : ABC shall finition . be an equilateral triangle ... draw a ftraight line equal to a given ftraight line . FRO Let A be the given point , and BC the given straight line ...
... draw the straight b 1. Poft . lines b CA , CB to the points A , B : ABC shall finition . be an equilateral triangle ... draw a ftraight line equal to a given ftraight line . FRO Let A be the given point , and BC the given straight line ...
Página 9
... draw a the straight line AB ; and upon it defcribe b the equilateral triangle DAB , and produce the ftraight lines DA , DB , to E and F , from the centre B , at the distance BC , defcribed the circle CGH , and from the centre D , at the ...
... draw a the straight line AB ; and upon it defcribe b the equilateral triangle DAB , and produce the ftraight lines DA , DB , to E and F , from the centre B , at the distance BC , defcribed the circle CGH , and from the centre D , at the ...
Página 16
... draw a ftraight line at right angles to a given ftraight line , from a given point in the fame . To Let AB be a given straight line , and C a point given in it ; it is required to draw a straight line from the point C at right angles to ...
... draw a ftraight line at right angles to a given ftraight line , from a given point in the fame . To Let AB be a given straight line , and C a point given in it ; it is required to draw a straight line from the point C at right angles to ...
Página 17
... draw a straight line perpendicular to a given ftraight line of an unlimited length , from a gi- ven point without it . Let AB be the given straight line , which may be produced to any length both ways , and let C be a point without it ...
... draw a straight line perpendicular to a given ftraight line of an unlimited length , from a gi- ven point without it . Let AB be the given straight line , which may be produced to any length both ways , and let C be a point without it ...
Página 18
... draw BE at right angles b to CD ; therefore the angles CBE , EBD are two right angles ; and becaufe CBE is equal to the two angles CBA , ABE together , add the angle EBD to each of thefe equals ; therefore the angles CBE , EBD are equal ...
... draw BE at right angles b to CD ; therefore the angles CBE , EBD are two right angles ; and becaufe CBE is equal to the two angles CBA , ABE together , add the angle EBD to each of thefe equals ; therefore the angles CBE , EBD are equal ...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ... Formerly Chairman Department of Immunology John Playfair Sin vista previa disponible - 2015 |
Términos y frases comunes
ABCD alfo alſo angle ABC angle ACB angle BAC arch bafe baſe BC is equal becauſe the angle bifected Book VII cafe centre circle ABC circumference co-fine cylinder defcribed demonftrated diameter draw drawn equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle faid fame manner fame plane fame ratio fame reaſon fecond fegment femicircle fhall fhewn fimilar fince firft firſt folid fore fquare of AC ftraight line AB fuch given ftraight line gnomon greater impoffible infcribed interfect join lefs leſs Let ABC line BC magnitudes muſt oppofite angle parallel parallelepiped parallelogram perpendicular polygon prifm propofition proportionals radius rectangle contained rectilineal figure remaining angle right angles ſhall ſpace ſquare tangent thefe THEOR theſe thoſe touches the circle triangle ABC wherefore