The first six books of the Elements of Euclid, with numerous exercisesIngram, Cooke, 1853 - 147 σελίδες |
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Αποτελέσματα 1 - 5 από τα 14.
Σελίδα 13
... angles . COR . 2. And consequently that all the angles made by any number of lines meeting in one point , are together equal to four right angles . PROPOSITION XVI . - THEOREM . If one side of a triangle be produced , the exterior angle ...
... angles . COR . 2. And consequently that all the angles made by any number of lines meeting in one point , are together equal to four right angles . PROPOSITION XVI . - THEOREM . If one side of a triangle be produced , the exterior angle ...
Σελίδα 14
... angle bca . Because a c is greater than ab , make ( i . 3 ) ad equal to a b , and join bd ; and because adb is the exterior angle of the triangle bd c , it is greater ( i . 16 ) than the interior and opposite angle dcb ; but ad bis ...
... angle bca . Because a c is greater than ab , make ( i . 3 ) ad equal to a b , and join bd ; and because adb is the exterior angle of the triangle bd c , it is greater ( i . 16 ) than the interior and opposite angle dcb ; but ad bis ...
Σελίδα 15
... angle bed of the triangle dcb is greater than its angle bdc , and that the greater ( i . 19 ) side is posite to the ... exterior angle of a triangle is greater than the interior and opposite angle , the exterior angle bdc of the triangle ...
... angle bed of the triangle dcb is greater than its angle bdc , and that the greater ( i . 19 ) side is posite to the ... exterior angle of a triangle is greater than the interior and opposite angle , the exterior angle bdc of the triangle ...
Σελίδα 19
Euclides. triangle g bc to the triangle de f , and the other angles to the other angles , gbc each to each , to which the equal sides are opposite ; therefore the angle gcb is equal to the angle ... exterior angle bha of the triangle a hc is ...
Euclides. triangle g bc to the triangle de f , and the other angles to the other angles , gbc each to each , to which the equal sides are opposite ; therefore the angle gcb is equal to the angle ... exterior angle bha of the triangle a hc is ...
Σελίδα 20
... exterior angle equal to the interior and opposite upon the same side of the line , or makes the interior angles upon the same side together equal to two right angles ; the two straight lines shall be parallel to one another . g h f LET ...
... exterior angle equal to the interior and opposite upon the same side of the line , or makes the interior angles upon the same side together equal to two right angles ; the two straight lines shall be parallel to one another . g h f LET ...
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a b c abcd adjacent angles angle a cb angle abc angle bac angle edf angle equal base bc bc is equal bisected centre circle abc circumference bc describe diameter double draw equal angles equal straight lines equal to f equimultiples ex æquali exterior angle fore four magnitudes fourth given circle given straight line gnomon greater ratio greater than f inscribe less LET abc LET the straight likewise multiple opposite angle parallel parallelogram perpendicular produced Q. E. D. PROPOSITION rectangle a d rectangle contained remaining angle right angles segment semicircle shewn square of a c straight line a b straight line ab straight line bc tiple touches the circle triangle abc triangle def twice the rectangle