Scientific and practical geometry for self-instruction1879 |
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Σελίδα xii
... , as fully and clearly as its very great importance deserves , and also to introduce many new and suggestive propositions and figures . DIVISION G. Partitionals . The matter contained in this Division xii INTRODUCTION .
... , as fully and clearly as its very great importance deserves , and also to introduce many new and suggestive propositions and figures . DIVISION G. Partitionals . The matter contained in this Division xii INTRODUCTION .
Σελίδα xiii
Rolla Rouse. DIVISION G. Partitionals . The matter contained in this Division is almost ignored in Euclid , and is seldom attended to in English works , though very carefully given in several French works , and especially that by Colonel ...
Rolla Rouse. DIVISION G. Partitionals . The matter contained in this Division is almost ignored in Euclid , and is seldom attended to in English works , though very carefully given in several French works , and especially that by Colonel ...
Σελίδα xv
... contained in a japanned case , 24 inches long , 4 inches broad , and 1 inch deep . The weight , including a shoulder - strap , is about four pounds , and the expense made in numbers would be less than 10s . , or as to the apparatus for ...
... contained in a japanned case , 24 inches long , 4 inches broad , and 1 inch deep . The weight , including a shoulder - strap , is about four pounds , and the expense made in numbers would be less than 10s . , or as to the apparatus for ...
Σελίδα 7
... contained between two radii and their intercepted arc ( kflk ) . Quadrant , a sector containing one - fourth of a circle , being a right angle ( ifli ) . Sextant , a sector containing one - sixth of a SECTIONS 15 To 19 . Angles Acute ...
... contained between two radii and their intercepted arc ( kflk ) . Quadrant , a sector containing one - fourth of a circle , being a right angle ( ifli ) . Sextant , a sector containing one - sixth of a SECTIONS 15 To 19 . Angles Acute ...
Σελίδα 8
... contained between two concen- tric circles ( Fig . C 1 , space between the larger and the smaller circle ) . Lune ... containing 90 degrees , and a semicircle 180 degrees . Degrees are marked ° , minutes , seconds " . These divisions are ...
... contained between two concen- tric circles ( Fig . C 1 , space between the larger and the smaller circle ) . Lune ... containing 90 degrees , and a semicircle 180 degrees . Degrees are marked ° , minutes , seconds " . These divisions are ...
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 96 - Any two sides of a triangle are together greater than the third side.
Σελίδα 73 - Parallelograms on the same base, and between the same parallels, are equal to one another.
Σελίδα 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.
Σελίδα 14 - Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.