Scientific and practical geometry for self-instruction1879 |
Inni boken
Resultat 1-5 av 47
Side 2
... indefinite in their variety . In Fig . C 1 , the lines ac , gh , and bd , are right lines , the lines bc , and ik , are curved lines , as would be any other bending lines although not parts of a circle ; a mixed line would be one in ...
... indefinite in their variety . In Fig . C 1 , the lines ac , gh , and bd , are right lines , the lines bc , and ik , are curved lines , as would be any other bending lines although not parts of a circle ; a mixed line would be one in ...
Side 20
... indefinite line cf , and set off bdbc . Then a line , az , drawn from point a through d will be perpendicular to line xy . 2. From point d to let fall a perpendicular on line xy . At any angle or slant , draw line de cutting the line at ...
... indefinite line cf , and set off bdbc . Then a line , az , drawn from point a through d will be perpendicular to line xy . 2. From point d to let fall a perpendicular on line xy . At any angle or slant , draw line de cutting the line at ...
Side 22
... indefinite line cx , and on same set off cd = ba . A line , CD , drawn through points a and d will then be parallel to line AB . By setting off equal distances on ba and on cd , it is ob- vious that any number of parallels might be ...
... indefinite line cx , and on same set off cd = ba . A line , CD , drawn through points a and d will then be parallel to line AB . By setting off equal distances on ba and on cd , it is ob- vious that any number of parallels might be ...
Side 25
... indefinite line ax . On line ax , with any scale , set off two equal parts , 1 and 2 . Through point 2 and 6 draw parallel 1 , and through point 1 and parallel to 26 draw parallel 1 ' , cutting line ab at c . Then c will be the point of ...
... indefinite line ax . On line ax , with any scale , set off two equal parts , 1 and 2 . Through point 2 and 6 draw parallel 1 , and through point 1 and parallel to 26 draw parallel 1 ' , cutting line ab at c . Then c will be the point of ...
Side 26
Rolla Rouse. From d parallel to af draw the indefinite line dx , and from ƒ parallel to ad draw fg , cutting dx at g , and from a through g draw line ah , which will bisect the angle as required . For demonstration see Div . C post ...
Rolla Rouse. From d parallel to af draw the indefinite line dx , and from ƒ parallel to ad draw fg , cutting dx at g , and from a through g draw line ah , which will bisect the angle as required . For demonstration see Div . C post ...
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.