Scientific and practical geometry for self-instruction1879 |
Inni boken
Resultat 1-5 av 90
Side vii
... parallels ( or rather cross parallels ) as the scientific base , and from that base to deduce , as may be done , and is done in this work , all the leading propositions in geometry . Such a course , however , as far as my experience ...
... parallels ( or rather cross parallels ) as the scientific base , and from that base to deduce , as may be done , and is done in this work , all the leading propositions in geometry . Such a course , however , as far as my experience ...
Side ix
... parallels . In Div . C ( commencing the scientific portion of the work ) the earlier Sections and figures introduce and show the effect and the importance of the scientific base " cross parallels , " the subsequent Sections being ...
... parallels . In Div . C ( commencing the scientific portion of the work ) the earlier Sections and figures introduce and show the effect and the importance of the scientific base " cross parallels , " the subsequent Sections being ...
Side 2
... parallel . The curved lines bc and il in that figure are also parallel , as explained Div . C Sect . 2 : but in geometrical operations , unless otherwise stated , the term " Parallels " is understood to mean right - lined parallels ...
... parallel . The curved lines bc and il in that figure are also parallel , as explained Div . C Sect . 2 : but in geometrical operations , unless otherwise stated , the term " Parallels " is understood to mean right - lined parallels ...
Side 6
... parallel are included in the general term " Parallelograms , " and include the following figures : — Square . All ... parallel sides , with any angles ( C 30 , abnd ) . Trapezium . Not any sides parallel , with any angles ( C 30 , abcd ) ...
... parallel are included in the general term " Parallelograms , " and include the following figures : — Square . All ... parallel sides , with any angles ( C 30 , abnd ) . Trapezium . Not any sides parallel , with any angles ( C 30 , abcd ) ...
Side 12
... parallel to , ( c ) || ' parallels , ( d ) perpendicular to , ( e ) angle , ( ƒ ) △ triangle , ( g ) □ parallelogram , ( h ) O circle , ( i ) Oce circumference . In this work the corresponding parallels in the various steps of an ...
... parallel to , ( c ) || ' parallels , ( d ) perpendicular to , ( e ) angle , ( ƒ ) △ triangle , ( g ) □ parallelogram , ( h ) O circle , ( i ) Oce circumference . In this work the corresponding parallels in the various steps of an ...
Vanlige uttrykk og setninger
ab² abcd ac² adjacent angles altitude angles equal angles Sect Application axis bisected centre chord circle circumference consequently construction continued contour corresponding angles cutting deduction demonstration diagonal diameter distance divided division draw arc draw line draw the indefinite drawn ellipse equal angles equal bases equal Sect equal sides equidistant equivalent triangle Euclid example exterior angle external angle four right angles frustrum geometrical operations give greater hypothenuse inches included angle indefinite line isosceles triangle length Let abc let fall line ac line cd mark measure half mode Multiply number of sides oblique opposed angle parallel ruler parallelogram pendicular polygons proof proposition radii ratio rectangle reflex angle rhombus right line rule in Sect secant Sectns segment semicircle set square side ab side ac similar triangles slant height summit supplementary angles tangent third side trapezium triangle abc
Populære avsnitt
Side 14 - 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...
Side 8 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Side 7 - A circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within called the center, Fig.
Side 96 - Any two sides of a triangle are together greater than the third side.
Side 73 - Parallelograms on the same base, and between the same parallels, are equal to one another.
Side 278 - Therefore all the interior angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 14 - Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another.
Side 266 - A sphere is a solid, bounded by a curved surface, every part of which is equally distant from a point within, called the centre.
Side 45 - From a given point without a line, to draw a perpendicular to that line. Let AB be the given line, and C the given point. From C draw any oblique line, as Cn.
Side 9 - The sign, + , which is read plus, indicates that the numbers between which it is placed are to be added ; thus, 6 + 4, means, that 4 is to be added to 6.