Scientific and practical geometry for self-instruction1879 |
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Side viii
... portion of the study . Divisions C to G give the scientific portion of the study in the following order : -C . Equivalents , or figures equal in area , whatever may be their difference in form . D. Differ entials . E. Measurement of ...
... portion of the study . Divisions C to G give the scientific portion of the study in the following order : -C . Equivalents , or figures equal in area , whatever may be their difference in form . D. Differ entials . E. Measurement of ...
Side ix
... 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 deduced from that base . Sect . 17 gives the all ...
... 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 deduced from that base . Sect . 17 gives the all ...
Side xiv
... portions of this work are entirely new , in- cluding the introduction of the scientific base ; the demonstra- tion in Sect . 27 in Div . C and the numerous and interesting deductions from it , and in the arrangement of the Divisions ...
... portions of this work are entirely new , in- cluding the introduction of the scientific base ; the demonstra- tion in Sect . 27 in Div . C and the numerous and interesting deductions from it , and in the arrangement of the Divisions ...
Side 15
... portion a ' 1 , of the distance between them ; at distance a ' p , by the portion a ' 2 , and so on , and consequently they must at length meet ; and further , by a simple proportion the exact length of the distance to which each line ...
... portion a ' 1 , of the distance between them ; at distance a ' p , by the portion a ' 2 , and so on , and consequently they must at length meet ; and further , by a simple proportion the exact length of the distance to which each line ...
Side 51
... portion of the figure is drawn in the way explained as to an ellipse , but to show that the number of equal parts into which the lines are divided is immaterial , the division is made into twelve parts . 68. TO DRAW A SPIRAL . Fig . 52 ...
... portion of the figure is drawn in the way explained as to an ellipse , but to show that the number of equal parts into which the lines are divided is immaterial , the division is made into twelve parts . 68. TO DRAW A SPIRAL . Fig . 52 ...
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.