Stewart's specific subjects. Euclid. [1st] (-3rd stage). [With 2 issues of] Algebra |
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Αποτελέσματα 1 - 5 από τα 27.
Σελίδα 14
Any figure can be divided into as many triangles as the figure has sides , by drawing straight lines from a point F within the figure to each of its angles . All the angles are equal to twice as many right angles as there are triangles ...
Any figure can be divided into as many triangles as the figure has sides , by drawing straight lines from a point F within the figure to each of its angles . All the angles are equal to twice as many right angles as there are triangles ...
Σελίδα 17
Produce AD both ways to the points E , F , and through B draw BE parallel to CA ; and through C draw CF parallel to BD ; therefore each of the figures EBCA , DBCF , B F is a parallelogram ; and EBCA is equal to DBCF , because they are ...
Produce AD both ways to the points E , F , and through B draw BE parallel to CA ; and through C draw CF parallel to BD ; therefore each of the figures EBCA , DBCF , B F is a parallelogram ; and EBCA is equal to DBCF , because they are ...
Σελίδα 19
... the other parallelograms which make up the whole figure ABCD , called the A H complements : BK is equal to KD . D E K F B G Because ABCD is a parallelogram , the triangle ABC is equal to ADC : and because EKHA is a parallelogram ...
... the other parallelograms which make up the whole figure ABCD , called the A H complements : BK is equal to KD . D E K F B G Because ABCD is a parallelogram , the triangle ABC is equal to ADC : and because EKHA is a parallelogram ...
Σελίδα 20
To describe a parallelogram equal to a given rectilineal figure , and having an angle equal to a given rectilineal angle . Let ABCD be the given figure , and E the angle . Join DB , and describe the parallelogram FH equal to the ...
To describe a parallelogram equal to a given rectilineal figure , and having an angle equal to a given rectilineal angle . Let ABCD be the given figure , and E the angle . Join DB , and describe the parallelogram FH equal to the ...
Σελίδα 2
A figure is that which is enclosed by one or more boundaries . XV . A circle is a plane figure con- tained by one line , called the circum- ference , such that all straight lines drawn from a certain point within the figure to the ...
A figure is that which is enclosed by one or more boundaries . XV . A circle is a plane figure con- tained by one line , called the circum- ference , such that all straight lines drawn from a certain point within the figure to the ...
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Stewart's Specific Subjects. Euclid. [1st] (-3rd Stage). [With 2 Issues Of ... Stewart W and Co Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
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Δημοφιλή αποσπάσματα
Σελίδα 19 - If two triangles have two sides of the one equal to two sides of the...
Σελίδα 1 - 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.
Σελίδα 8 - Upon the same base, and on the same side of it, there cannot be two triangles, that have their sides which are terminated in one extremity of the base equal to one another, and likewise those which are terminated in the other extremity, equal to one another.
Σελίδα 16 - Any two sides of a triangle are together greater than the third side.
Σελίδα 22 - If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another, and the exterior angle equal to the interior and opposite upon the same side, and also the two interior angles upon the same side together equal to two right angles.
Σελίδα 12 - IF a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Σελίδα 5 - IF two angles of a triangle be equal to one another, the sides also which subtend, or are opposite to, the equal angles, shall be equal to one another.