The Elements of Euclid [book 1] for beginners, by J. Lowres1852 |
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Αποτελέσματα 1 - 5 από τα 20.
Σελίδα 11
... AB be the given line ; it is re- quired to describe an equilateral trian- gle upon it . From the centre A , with the ... side of the line AB , which can be demon- strated in the same manner . PROF . II . PROB . From a given point ...
... AB be the given line ; it is re- quired to describe an equilateral trian- gle upon it . From the centre A , with the ... side of the line AB , which can be demon- strated in the same manner . PROF . II . PROB . From a given point ...
Σελίδα 13
... A B equal to DE , the side AC equal to DF , and the angle a equal to the angle D ; then the base B C is equal to EF ... side AB upon DE , then the point в must coincide with E , because the sides A B and DE are equal ( Hyp . ) ; and the ...
... A B equal to DE , the side AC equal to DF , and the angle a equal to the angle D ; then the base B C is equal to EF ... side AB upon DE , then the point в must coincide with E , because the sides A B and DE are equal ( Hyp . ) ; and the ...
Σελίδα 15
... AB , and on the same side of it , have the sides AC and AD equal ; then the sides BC and BD are not equal . CASE 1. When the vertex of each tri- angle is without the other . A B Join CD , and if it be possible , let Bc be equal to BD ...
... AB , and on the same side of it , have the sides AC and AD equal ; then the sides BC and BD are not equal . CASE 1. When the vertex of each tri- angle is without the other . A B Join CD , and if it be possible , let Bc be equal to BD ...
Σελίδα 16
... sides of the other , and also have their bases equal , the angles opposite the equal bases are equal , and the two triangle . are equal in all respects . Let ABC and DEF be two tri- angles , having the side AB equal to DE , the side B C ...
... sides of the other , and also have their bases equal , the angles opposite the equal bases are equal , and the two triangle . are equal in all respects . Let ABC and DEF be two tri- angles , having the side AB equal to DE , the side B C ...
Σελίδα 17
... A B be the given line , it is required to bisect it . Upon A B describe an equilateral triangle ABC ( Prop . I ... side a c is equal to BC ( Const . ) , the side CD is common to both , and the angle A CD is equal to BCD ( Const ...
... A B be the given line , it is required to bisect it . Upon A B describe an equilateral triangle ABC ( Prop . I ... side a c is equal to BC ( Const . ) , the side CD is common to both , and the angle A CD is equal to BCD ( Const ...
Άλλες εκδόσεις - Προβολή όλων
The Elements of Euclid [Book 1] for Beginners, by J. Lowres Joseph Butler,Thomas Codrington,Euclides Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
The Elements of Euclid [book 1] for Beginners, by J. Lowres Joseph Butler,Thomas Codrington,Euclides Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
The Elements of Euclid [book 1] for Beginners, by J. Lowres Joseph Butler,Thomas Codrington,Euclides Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
A B and C D A B is equal ABC and ABD ABCD adjacent angles alternate angles angle ABC angle BAC angle equal angle opposite angles AGF angles CAB angles DBA base BC BC is equal BD Prop BGF and EHD bisect coincide DBC are equal demonstrated describe an equilateral diagonal draw EHD are equal equal Ax equal bases equal Hyp equal Prop equal sides equal to CD equal triangles equilateral triangle EUCLID's ELEMENTS exterior given angle given line given point greater than AC hypotenuse interior angles interior opposite angle isosceles triangle join Let the line line BC lines A B parallel Prop parallel to BC parallelogram perpendicular price One Shilling PROB produced proposition rectilineal figure respectively equal right angles Prop SCHOL side A B sides AB sides BC THEOR triangle ABC triangles are equal Twickenham vertex W. W. D. PROP
Δημοφιλή αποσπάσματα
Σελίδα 10 - Things which are halves of the same are equal to one another. 8. Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another.
Σελίδα 10 - Things which are equal to the same thing are also equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be subtracted from equals, the remainders are equal. 4. Things which coincide with one another are equal to one another.
Σελίδα 40 - 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.
Σελίδα 10 - 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 10 - LET it be granted that a straight line may be drawn from any one point to any other point.
Σελίδα 39 - If the square described upon one of the sides of a triangle, be equal to the squares described upon the other two sides of it ; the angle contained by these two sides is a right angle.
Σελίδα 20 - If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles.
Σελίδα 29 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Σελίδα 22 - Any two sides of a triangle are together greater than the third side.
Σελίδα 10 - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal. 4. If equals be added to unequals, the wholes are unequal.