Elements of Geometry: Being Chiefly a Selection from Playfair's GeometryA. Walker, 1829 - 186 sider |
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Side 31
... equal to CB , and CD is common to the two triangles ACD , BCD , and the angle ACD is equal to BCD ; the base AD is equal to DB ( 4. 1. ) ; therefore the straight line AB ... right angles . For the triangles ACD , BCD are equal in all respects ...
... equal to CB , and CD is common to the two triangles ACD , BCD , and the angle ACD is equal to BCD ; the base AD is equal to DB ( 4. 1. ) ; therefore the straight line AB ... right angles . For the triangles ACD , BCD are equal in all respects ...
Side 32
... straight line makes with another , on one side of it , are together equal to two right angles . Let the straight line AB make with CD , on one side of CD , the angles ABC , ABD ; these are together equal to two right angles .
... straight line makes with another , on one side of it , are together equal to two right angles . Let the straight line AB make with CD , on one side of CD , the angles ABC , ABD ; these are together equal to two right angles .
Side 34
... angles made A at the point of concourse of the lines on both sides of AB are together e- qual to four right angles . ED F D PROPOSITION XV . THEOREM . E B If two straight lines cut each other , the opposite angles will be equal . C Let the ...
... angles made A at the point of concourse of the lines on both sides of AB are together e- qual to four right angles . ED F D PROPOSITION XV . THEOREM . E B If two straight lines cut each other , the opposite angles will be equal . C Let the ...
Side 39
... a straight line intersect two other straight lines which are in the same plane , and make the alternate angles equal to each other , those two lines are parallel . See Appendix to Book I. Let ... AB , CD , make the alternate angles AEF , EFD ...
... a straight line intersect two other straight lines which are in the same plane , and make the alternate angles equal to each other , those two lines are parallel . See Appendix to Book I. Let ... AB , CD , make the alternate angles AEF , EFD ...
Side 40
Being Chiefly a Selection from Playfair's Geometry John Playfair Francis Nichols. rior and opposite angle GHD on the same side ; or make the interior angles BGH , GHD on the same side , to- gether equal to two right an- gles ; AB is ...
Being Chiefly a Selection from Playfair's Geometry John Playfair Francis Nichols. rior and opposite angle GHD on the same side ; or make the interior angles BGH , GHD on the same side , to- gether equal to two right an- gles ; AB is ...
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Elements of Geometry: Being Chiefly a Selection from Playfair's Geometry Formerly Chairman Department of Immunology John Playfair,John Playfair Ingen forhåndsvisning tilgjengelig - 2016 |
Elements of Geometry: Being Chiefly a Selection From Playfair's Geometry John Playfair Ingen forhåndsvisning tilgjengelig - 2023 |
Elements of Geometry: Being Chiefly a Selection From Playfair's Geometry John Playfair Ingen forhåndsvisning tilgjengelig - 2023 |
Vanlige uttrykk og setninger
ABC is equal ABCD alternate angles angle ABC angle ACB angle BAC angles AGH angles equal base ABC bases and altitudes bisect centre chord circumference cone Consequently cylinder demonstrations described diagonals diameter divided draw equal angles equal arches equal bases equal circles equal to AC equiangular Euclid's Euclid's Elements exterior angle fore four quantities four right angles geometry given point given straight line gles greater Hence homologous sides intersect KLMN Let ABC meet opposite angles opposite side paral parallel lines parallel to CD parallelogram parallelopipeds perp perpendicular plane polygon prism Prop pyramid Q. E. D. COR Q. E. D. PROPOSITION radius rectangle contained right angled triangle Scholium segments semicircle side AC similar similar triangles solid square straight line &c subtended tangent THEOREM triangle ABC vertex wherefore
Populære avsnitt
Side 36 - Any two sides of a triangle are together greater than the third side.
Side 80 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Side 42 - To draw a straight line through a given point parallel to a given straight line. Let A be the given point, and BC the given straight line...
Side 30 - To bisect a given finite straight line, that is, to divide it into two equal parts. Let AB be the given straight line : it is required to divide it intotwo equal parts.
Side 20 - LET it be granted that a straight line may be drawn from any one point to any other point.
Side 38 - Problem. At a given point in a given straight line to make a rectilineal angle equal to a given rectilineal angle.
Side 113 - Wherefore also the angle BAD is equal to the angle CAD : Therefore the angle BAC is cut into two equal angles by the straight line AD.
Side 24 - DE ; the point B shall coincide with the point E, because AB is equal to DE; and AB coinciding with DE, AC shall coincide...
Side 36 - The greater angle of every triangle is subtended by the greater side, or has the greater side opposite to it.