Scientific and practical geometry for self-instruction1879 |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα
... equal to one side , viz . , either the sides adjacent to the equal angles in each , or the sides opposite to them ; then shall the other sides be equal , each to each , and also the third angle of the one equal to the third angle of the ...
... equal to one side , viz . , either the sides adjacent to the equal angles in each , or the sides opposite to them ; then shall the other sides be equal , each to each , and also the third angle of the one equal to the third angle of the ...
Σελίδα 7
... equal sides and two equal angles . The angles opposite the equal sides , the base angles , are equal . An equilateral triangle has three equal sides and each angle measures 60 ° . The angle sum of any quadrilateral is 360 ° . Opposite ...
... equal sides and two equal angles . The angles opposite the equal sides , the base angles , are equal . An equilateral triangle has three equal sides and each angle measures 60 ° . The angle sum of any quadrilateral is 360 ° . Opposite ...
Σελίδα 6
... sides of the one equal to two sides of the other , each to each ; and have likewise the angles contained by those sides equal to one another ; they shall likewise have their bases , or third sides , equal ; and the two triangles shall ...
... sides of the one equal to two sides of the other , each to each ; and have likewise the angles contained by those sides equal to one another ; they shall likewise have their bases , or third sides , equal ; and the two triangles shall ...
Σελίδα 8
... sides equal , when the vertex of each of the triangles is without the other . Secondly . Let the vertex D of one triangle be within the other produce the sides AC and AD , and join CD . Because the sides AC and AD of the triangle CAD are ...
... sides equal , when the vertex of each of the triangles is without the other . Secondly . Let the vertex D of one triangle be within the other produce the sides AC and AD , and join CD . Because the sides AC and AD of the triangle CAD are ...
Σελίδα 7
... equal sides and 4 equal angles . It has 4 lines of symmetry . ( b ) A regular hexagon has equal angles . equal sides and It has 6 lines of symmetry . Reflecting shapes 7 ( c ) A regular pentagon has equal angles . It has equal sides and ...
... equal sides and 4 equal angles . It has 4 lines of symmetry . ( b ) A regular hexagon has equal angles . equal sides and It has 6 lines of symmetry . Reflecting shapes 7 ( c ) A regular pentagon has equal angles . It has equal sides and ...
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.