Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with Explanatory Notes; a Series of Questions on Each Book; and a Selection of Geometrical Exercises from the Senate-house and College Examination Papers, with Hints, &c. Designed for the Use of the Junior Classes in Public and Private Schools. the first six books, and the portions of the eleventh and twelfth books read at CambridgeLongman, Green, Longman, Roberts, and Green, 1868 - 410 Seiten |
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Seite
... Fourth Book of the Elements Third Book of the Elements Notes to the Third Book Questions on the Third Book ..... Geometrical Exercises on Book III Notes to the Fourth Book Questions on the Fourth Book ..... 120 153 157 160 .... 175 190 ...
... Fourth Book of the Elements Third Book of the Elements Notes to the Third Book Questions on the Third Book ..... Geometrical Exercises on Book III Notes to the Fourth Book Questions on the Fourth Book ..... 120 153 157 160 .... 175 190 ...
Seite 49
... fourth and sixth are not absolutely necessary to avoid error , but the other five are indispensable ; and though they may be found in books of logic , none but the Geometers have paid any regard to them . " The course pursued in the ...
... fourth and sixth are not absolutely necessary to avoid error , but the other five are indispensable ; and though they may be found in books of logic , none but the Geometers have paid any regard to them . " The course pursued in the ...
Seite 75
... fourth of the angle at the vertex of the triangle . 20. From a given point , draw two straight lines making equal angles with two given straight lines intersecting one another . 21. From a given point to draw a straight line to a given ...
... fourth of the angle at the vertex of the triangle . 20. From a given point , draw two straight lines making equal angles with two given straight lines intersecting one another . 21. From a given point to draw a straight line to a given ...
Seite 77
... fourth of the third angle , and from one of them a line be drawn at right angles to the base meeting the opposite side produced ; then will the part produced , the perpendicular , and the remaining side , form an equilateral triangle ...
... fourth of the third angle , and from one of them a line be drawn at right angles to the base meeting the opposite side produced ; then will the part produced , the perpendicular , and the remaining side , form an equilateral triangle ...
Seite 80
... fourth of the given triangle . 99. If in the triangle ABC , BC be bisected in D , AD joined and bisected in E , BE joined and bisected in F , and CF joined and bisected in G ; then the triangle EFG will be equal to one - eighth of the ...
... fourth of the given triangle . 99. If in the triangle ABC , BC be bisected in D , AD joined and bisected in E , BE joined and bisected in F , and CF joined and bisected in G ; then the triangle EFG will be equal to one - eighth of the ...
Häufige Begriffe und Wortgruppen
A₁ ABCD AC is equal Algebraically angle ABC angle ACB angle BAC Apply Euc base BC chord circle ABC constr demonstrated describe a circle diagonals diameter divided double draw equal angles equiangular equilateral triangle equimultiples Euclid exterior angle Geometrical given circle given line given point given straight line gnomon greater hypotenuse inscribed intersection isosceles triangle less Let ABC line BC lines be drawn multiple opposite angles parallelogram parallelopiped pentagon perpendicular plane polygon problem produced Prop proportionals proved Q.E.D. PROPOSITION quadrilateral figure radius ratio rectangle contained rectilineal figure remaining angle right angles right-angled triangle segment semicircle shew shewn similar similar triangles solid angle square on AC tangent THEOREM touch the circle trapezium triangle ABC twice the rectangle vertex vertical angle wherefore
Beliebte Passagen
Seite 6 - 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...
Seite 118 - Guido, with a burnt stick in his hand, demonstrating on the smooth paving-stones of the path, that the square on the hypotenuse of a right-angled triangle is equal to the sum of the squares on the other two sides.
Seite 2 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Seite 317 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Seite 90 - If a straight line be divided into any two parts, the squares of the whole line, and of one of the parts, are equal to twice the rectangle contained by the whole and that part, together with the square of the other part. Let the straight line AB be divided into any two parts in the point C; the squares of AB, BC are equal to twice the rectangle AB, BC, together with the square of AC.
Seite 88 - 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.
Seite 30 - ... twice as many right angles as the figure has sides ; 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.
Seite 9 - THE angles at the base of an isosceles triangle are equal to one another : and, if the equal sides be produced, the angles upon the other side of the base shall be equal.
Seite 22 - IF two triangles have two sides of the one equal to two sides of the other, each to each, but the angle contained by the two sides of one of them greater than the angle contained by the two sides equal to them, of the other ; the base of that which has the greater angle shall be greater than the base of the other...
Seite 92 - If a straight line be divided into two equal, and also into two unequal parts, the squares on the two unequal parts are together double of the square on half the line and of the square on the line between the points of section. Let the straight line AB be divided into two equal parts...