Scientific and practical geometry for self-instruction1879 |
Inni boken
Resultat 1-5 av 44
Side 5
... included angle . 12. All the angles in any triangle are together equal to two right angles . ( For demonstration see Div . C Sect . 10. ) There cannot be more than one right or obtuse angle in a triangle . 13. In a right - angled ...
... included angle . 12. All the angles in any triangle are together equal to two right angles . ( For demonstration see Div . C Sect . 10. ) There cannot be more than one right or obtuse angle in a triangle . 13. In a right - angled ...
Side 6
... included in the general term " Parallelograms , " and include the following figures : — Square . All four sides equal and four right angles ( Fig . C 13 ) . Rectangle . Opposed sides ( but not all four sides ) equal , and four right ...
... included in the general term " Parallelograms , " and include the following figures : — Square . All four sides equal and four right angles ( Fig . C 13 ) . Rectangle . Opposed sides ( but not all four sides ) equal , and four right ...
Side 11
... included in ( ) . Thus , √4 × 12 or √ ( 4 × 12 ) means the square root of 4 × 12 , or 48 , or ✓A.B , the square root of A and B multiplied together . 25. Powers are marked by small figures above the figure or letter ; thus , 62 means ...
... included in ( ) . Thus , √4 × 12 or √ ( 4 × 12 ) means the square root of 4 × 12 , or 48 , or ✓A.B , the square root of A and B multiplied together . 25. Powers are marked by small figures above the figure or letter ; thus , 62 means ...
Side 31
... included angle given . ( Fig . 20. ) Let ab and cd be the sides and ƒ the included angle . Set off gh for base = one of the sides ( say cd ) . On side cd , on which the adjoining angle is shown draw any perpendicular , ij , cutting the ...
... included angle given . ( Fig . 20. ) Let ab and cd be the sides and ƒ the included angle . Set off gh for base = one of the sides ( say cd ) . On side cd , on which the adjoining angle is shown draw any perpendicular , ij , cutting the ...
Side 38
... may be drawn to form tangents to a circumference , and enclose it instead of forming chords , and being included within the circle . Two general and very useful modes of constructing regular figures 38 B - CONSTRUCTIONALS .
... may be drawn to form tangents to a circumference , and enclose it instead of forming chords , and being included within the circle . Two general and very useful modes of constructing regular figures 38 B - CONSTRUCTIONALS .
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.