Scientific and practical geometry for self-instruction1879 |
Inni boken
Resultat 1-5 av 32
Side vii
... in geometry may be deduced . From that base , the deductions , to state only a few of them , comprise the equality of opposite or corresponding angles , or alternate angles on same side of parallels INTRODUCTION . vii.
... in geometry may be deduced . From that base , the deductions , to state only a few of them , comprise the equality of opposite or corresponding angles , or alternate angles on same side of parallels INTRODUCTION . vii.
Side 9
... opposite sides of it , and when represented on a plane surface differs from a circle , in the contour or boundary line , being proportioned to cross axes of unequal length instead of the equal radii of a circle ( see B , Fig . 49 to 51 ...
... opposite sides of it , and when represented on a plane surface differs from a circle , in the contour or boundary line , being proportioned to cross axes of unequal length instead of the equal radii of a circle ( see B , Fig . 49 to 51 ...
Side 19
... opposite sides , to get the full width of the lead , and two narrower slices on the other opposite sides . In drawing lines , the pen or pencil should be kept as perpendicular as possible , and at the same degree of closeness to the ...
... opposite sides , to get the full width of the lead , and two narrower slices on the other opposite sides . In drawing lines , the pen or pencil should be kept as perpendicular as possible , and at the same degree of closeness to the ...
Side 22
... opposite arcs ( Fig . B 6 ) . From point a at any oblique angle draw ab touching the line cf. With centre b and radius ba draw the arc ac , and with centre a and same radius draw the indefinite arc bx , and set off bd = ac . Then a line ...
... opposite arcs ( Fig . B 6 ) . From point a at any oblique angle draw ab touching the line cf. With centre b and radius ba draw the arc ac , and with centre a and same radius draw the indefinite arc bx , and set off bd = ac . Then a line ...
Side 36
... opposite sides equal , and four right angles . Fig . 28 , acdb . The opposite sides may have any altitude differing from the base , as if equal with the base the figure would become a square . Assume ab to give the length of base , and ...
... opposite sides equal , and four right angles . Fig . 28 , acdb . The opposite sides may have any altitude differing from the base , as if equal with the base the figure would become a square . Assume ab to give the length of base , and ...
Vanlige uttrykk og setninger
abcd according added adopted altitude Application axis base bisected centre chord circle circumference common complete consequently construction contain continued convert corresponding cutting deduction demonstration diagonal diameter direction distance divided division double draw line drawn ellipse entire equal equal sides equidistant equivalent Euclid example external angle figure four geometrical give given greater half height hypothenuse inches included indefinite join latter length less line ac mark mean measure mode Multiply oblique operations opposed angle opposite parallel parallelogram passing perpendicular portion practical proof proportion proposition radius ratio rectangle regards remarks respectively result right angles right line rule secant Sect segment semicircle shown side ac similar simple square student summit surface taken taking tangent term third triangle
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.