Scientific and practical geometry for self-instruction1879 |
Inni boken
Resultat 1-5 av 19
Side 8
... Secant , a line which cuts a circumference ( Fig . D 23 , ag , af , & c . ) Inscribed Figures , those in which the sides form chords in a circle ( B 27 , ghik ) . Circumscribed Figures , those in which the sides form tan- gents of a ...
... Secant , a line which cuts a circumference ( Fig . D 23 , ag , af , & c . ) Inscribed Figures , those in which the sides form chords in a circle ( B 27 , ghik ) . Circumscribed Figures , those in which the sides form tan- gents of a ...
Side 54
... secant cf. Then of will be the base and cg the perpendicular required . Proof . Tangent a mean proportional between entire secant cf and the part cg without the circle ( Fig . 22 ) , and cf x cg = ca2 . 73. To find the side of a square ...
... secant cf. Then of will be the base and cg the perpendicular required . Proof . Tangent a mean proportional between entire secant cf and the part cg without the circle ( Fig . 22 ) , and cf x cg = ca2 . 73. To find the side of a square ...
Side 57
... secant , will together equal two right angles , for what one omits to include in the opening made by a right angle , is taken up by the other angle on the same side of the line . The number of angles on one side of a line is also imma ...
... secant , will together equal two right angles , for what one omits to include in the opening made by a right angle , is taken up by the other angle on the same side of the line . The number of angles on one side of a line is also imma ...
Side 58
... secant . ( 1 and 7 ; 2 and 8. ) Alternate internal Angles . Internal angles on different sides of a secant . ( 4 and 6 ; 3 and 5. ) Corresponding Angles . Those on same side of a secant and in same relative position to a parallel , that ...
... secant . ( 1 and 7 ; 2 and 8. ) Alternate internal Angles . Internal angles on different sides of a secant . ( 4 and 6 ; 3 and 5. ) Corresponding Angles . Those on same side of a secant and in same relative position to a parallel , that ...
Side 60
... secant separately , the opposite angles 1 and 3 , 2 and 4 , 5 and 7 , and 6 and 8 are respectively equal . For a proof take 1 and 3. The angles 1 and 2 ( in either Fig . 2 or Fig . 3 ) are supplementary , or together equal two right ...
... secant separately , the opposite angles 1 and 3 , 2 and 4 , 5 and 7 , and 6 and 8 are respectively equal . For a proof take 1 and 3. The angles 1 and 2 ( in either Fig . 2 or Fig . 3 ) are supplementary , or together equal two right ...
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.