The Elements of Euclid, the parts read in the University of Cambridge [book 1-6 and parts of book 11,12] with geometrical problems, by J.W. Colenso1846 |
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Αποτελέσματα 1 - 5 από τα 62.
Σελίδα 2
... ABC or CBA , that which is contained by AB , DB , is named the angle ABD or DBA , and that which is contained by DB ... circle is a plane figure contained by one line , which is called the circum- ference , and is such that all straight lines ...
... ABC or CBA , that which is contained by AB , DB , is named the angle ABD or DBA , and that which is contained by DB ... circle is a plane figure contained by one line , which is called the circum- ference , and is such that all straight lines ...
Σελίδα 6
... circle BCD ( Post.3 ) , and from the centre B , at the distance BA , describe the circle ACE ; and from the point C , in which the circles cut one another , draw the straight lines CA , CB , to the points A , B ( Post . 1 ) : ABC shall ...
... circle BCD ( Post.3 ) , and from the centre B , at the distance BA , describe the circle ACE ; and from the point C , in which the circles cut one another , draw the straight lines CA , CB , to the points A , B ( Post . 1 ) : ABC shall ...
Σελίδα 49
... ABC , right - angled at A ; in DC take DE equal to AC , and bisect CE in F : then shew that DF , BF , ( drawn to a ... circle being given , find two opposite points in the circumference by means of a pair of compasses only . 16. From a ...
... ABC , right - angled at A ; in DC take DE equal to AC , and bisect CE in F : then shew that DF , BF , ( drawn to a ... circle being given , find two opposite points in the circumference by means of a pair of compasses only . 16. From a ...
Σελίδα 74
... circle , whose centre is 0 ; from any point C in its arc draw CD perpendicu- lar to OA or OB , meeting in E the radius ... ABC , and CD be drawn perpendicular to AB , prove that the squares upon the three sides are together equal to the ...
... circle , whose centre is 0 ; from any point C in its arc draw CD perpendicu- lar to OA or OB , meeting in E the radius ... ABC , and CD be drawn perpendicular to AB , prove that the squares upon the three sides are together equal to the ...
Σελίδα 75
... ABC , draw DE perpendicu- lar on BC ; and shew that the square upon BD is three- fourths of the square upon BC , and ... circle a semicircle be de- scribed , and a perpendicular to the common diameter be drawn , the square of the chord of the ...
... ABC , draw DE perpendicu- lar on BC ; and shew that the square upon BD is three- fourths of the square upon BC , and ... circle a semicircle be de- scribed , and a perpendicular to the common diameter be drawn , the square of the chord of the ...
Άλλες εκδόσεις - Προβολή όλων
The Elements of Euclid, the Parts Read in the University of Cambridge [Book ... Euclides Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD adjacent angles angle ABC angle ACB angle BAC angle BCD angle EDF angle equal base BC BC is equal centre chord circle ABC circumference cuts the circle diameter double draw equal angles equal to F equiangular equilateral triangle equimultiples exterior angle fore given circle given line given point given straight line gnomon greater ratio inscribed intersection isosceles triangle less Let ABC Let the straight lines be drawn lines drawn meet multiple opposite angles opposite sides parallel to BC parallelogram pentagon perpendicular plane polygon PROB produced proportionals Q.E.D. PROP rectangle contained rectilineal figure remaining angle right angles right-angled triangle segment semicircle shew shewn square of AC straight line &c straight line AB THEOR touches the circle triangle ABC twice the rectangle Wherefore
Δημοφιλή αποσπάσματα
Σελίδα 42 - To a given straight line to apply a parallelogram, which shall be equal to a given triangle, and have one of its angles equal to a given rectilineal angle.
Σελίδα 4 - Let it be granted that a straight line may be drawn from any one point to any other point.
Σελίδα 33 - F, which is the common vertex of the triangles: that is », together with four right angles. Therefore all the angles of the figure, together with four right angles are equal to twice as many right angles as the figure has sides.
Σελίδα 62 - If a straight line be divided into two equal parts, and also into two unequal parts; the rectangle contained by the unequal parts, together with the square of the line between the points of section, is equal to the square of half the line.
Σελίδα 22 - If from the ends of a side of a triangle, there be drawn two straight lines to a point within the triangle, these shall be less than the other two sides of the triangle, but shall contain a greater angle.
Σελίδα 58 - If there be two straight lines, one of which is divided into any number of parts, the rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line, and the several parts of the divided line.
Σελίδα 146 - ... may be demonstrated from what has been said of the pentagon : and likewise a circle may be inscribed in a given equilateral and equiangular hexagon, and circumscribed about it, by a method like to that used for the pentagon.
Σελίδα 194 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 2 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16.
Σελίδα 69 - To divide a given straight line into two parts, so that the rectangle contained by the whole, and one of the parts, may be equal to the square of the other part.