The Elements of Euclid for the Use of Schools and Colleges: With Notes, an Appendix, and Exercises. comprising the first six books and portions of the eleventh and twelfth booksMacmillan and Company, 1880 - 400 sider |
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Side 4
... square is that which has all its sides equal , and all its angles right angles : 31. An oblong is that which has all its angles right angles , but not all its sides equal : 32. A rhombus is that which has all its sides equal , but its ...
... square is that which has all its sides equal , and all its angles right angles : 31. An oblong is that which has all its angles right angles , but not all its sides equal : 32. A rhombus is that which has all its sides equal , but its ...
Side 5
... square and rhombus are used in the sense defined by Euclid ; and the word rectangle is used instead of the word oblong . Some writers propose to restrict the word trapezium to a quadrilateral which has two of its sides parallel ; and it ...
... square and rhombus are used in the sense defined by Euclid ; and the word rectangle is used instead of the word oblong . Some writers propose to restrict the word trapezium to a quadrilateral which has two of its sides parallel ; and it ...
Side 48
... applying to the given straight line a parallelogram equal to the first tri- angle ABD , and having an angle equal to the given angle ; and so on . [ I. 44 . PROPOSITION 46. PROBLEM . To describe a square on a 48 EUCLID'S ELEMENTS .
... applying to the given straight line a parallelogram equal to the first tri- angle ABD , and having an angle equal to the given angle ; and so on . [ I. 44 . PROPOSITION 46. PROBLEM . To describe a square on a 48 EUCLID'S ELEMENTS .
Side 49
... square on a given straight line . Let AB be the given straight line : it is required to describe a square on AB . From the point A draw AC at right angles to AB ; [ I. 11 . and make AD equal to AB ; [ I. 3 . through D draw DE parallel ...
... square on a given straight line . Let AB be the given straight line : it is required to describe a square on AB . From the point A draw AC at right angles to AB ; [ I. 11 . and make AD equal to AB ; [ I. 3 . through D draw DE parallel ...
Side 50
... square which is de- scribed on the side subtending the right angle is equal to the squares described on the sides which contain the right angle . Let ABC be a right - angled triangle , having the right angle BAC : the square described ...
... square which is de- scribed on the side subtending the right angle is equal to the squares described on the sides which contain the right angle . Let ABC be a right - angled triangle , having the right angle BAC : the square described ...
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The Elements of Euclid for the Use of Schools and Colleges: With Notes, an ... Issac Todhunter Ingen forhåndsvisning tilgjengelig - 2014 |
Vanlige uttrykk og setninger
ABCD AC is equal angle ABC angle ACB angle BAC angle EDF angles equal Axiom base BC bisects the angle centre chord circle ABC circle described circumference Construction Corollary describe a circle diameter double draw a straight equal angles equal to F equiangular equilateral equimultiples Euclid Euclid's Elements exterior angle given circle given point given straight line gnomon Hypothesis inscribed intersect isosceles triangle less Let ABC magnitudes middle point multiple opposite angles opposite sides parallelogram perpendicular plane polygon produced proportionals PROPOSITION 13 Q.E.D. PROPOSITION quadrilateral radius rectangle contained rectilineal figure remaining angle rhombus right angles right-angled triangle segment shew shewn side BC square on AC straight line &c straight line drawn tangent THEOREM touches the circle triangle ABC triangle DEF twice the rectangle vertex Wherefore
Populære avsnitt
Side 225 - 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.
Side 284 - 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.
Side 73 - 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.
Side 39 - Triangles upon the same base, and between the same parallels, are equal to one another.
Side 10 - 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.
Side 353 - AB into two parts, so that the rectangle contained by the whole line and one of the parts, shall be equal to the square on the other part.
Side 67 - ... subtending the obtuse angle, is greater than the squares on the sides containing the obtuse angle, by twice the rectangle contained by the side upon which, when produced, the perpendicular falls, and the straight line intercepted without the triangle between the perpendicular and the obtuse angle, Let ABC be an obtuse-angled triangle, having the obtuse angle ACB; and from the point A, let AD be drawn perpendicular to BC produced.
Side 300 - Describe a circle which shall pass through a given point and touch a given straight line and a given circle.
Side xv - PROPOSITION I. PROBLEM. To describe an equilateral triangle upon a given Jinite straight line. Let AB be the given straight line. It is required to describe an equilateral triangle upon AB, From the centre A, at the distance AB, describe the circle BCD ; (post.
Side 36 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.