A school Euclid, being books i. & ii. of Euclid's Elements, with notes by C. Mansford1874 |
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Página 32
... angle DCF is equal to the angle ECF [ I. 8 ] , and they are adjacent angles . But 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 ...
... angle DCF is equal to the angle ECF [ I. 8 ] , and they are adjacent angles . But 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 ...
Página 33
... angle CHF is equal to the angle CHG [ I. 8. ] ; and they are adjacent angles . But 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 ...
... angle CHF is equal to the angle CHG [ I. 8. ] ; and they are adjacent angles . But 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 ...
Página 34
... right angles , or are together equal to two right angles . 1 . Let the straight line AB make with the straight line CD , on one side of it , the angles CBA , A U B A ABD these either are two right angles , or are 34 EUCLID'S ELEMENTS ...
... right angles , or are together equal to two right angles . 1 . Let the straight line AB make with the straight line CD , on one side of it , the angles CBA , A U B A ABD these either are two right angles , or are 34 EUCLID'S ELEMENTS ...
Página 35
Euclides Charles Mansford. ABD these either are two right angles , or are together equal to two right angles . For if the angle CBA is equal to the angle ABD , each of them is a right angle . [ Def . 10. ] But if not , from the point B draw ...
Euclides Charles Mansford. ABD these either are two right angles , or are together equal to two right angles . For if the angle CBA is equal to the angle ABD , each of them is a right angle . [ Def . 10. ] But if not , from the point B draw ...
Página 36
... right angles : BD shall be in the same straight line with CB . 2 . For if BD be notin the same straight line with CB ... angles ABC , ABE , C B A E D these angles are together equal to two right angles . [ I. 13. ] But the angles ABC ...
... right angles : BD shall be in the same straight line with CB . 2 . For if BD be notin the same straight line with CB ... angles ABC , ABE , C B A E D these angles are together equal to two right angles . [ I. 13. ] But the angles ABC ...
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A School Euclid, Being Books I. & II. of Euclid's Elements, with Notes by C ... Euclides Sin vista previa disponible - 2015 |
Términos y frases comunes
AC is equal adjacent angles alternate angles angle ABC angle ACB angle AGH angle BAC angle BCD angle EDF angle equal angles are equal angles CEA axioms base BC bisect centre circle coincide Const diagonals diameter double equal sides equal to BC equal to twice equilateral triangle Euclid exterior angle fore four right angles given point given rectilineal angle given straight line gnomon half a right hypotenuse interior and opposite isosceles triangle join less Let ABC Let the straight obtuse opposite angle opposite sides parallel to CD parallelogram parallelogram ABCD perpendicular produced prop quadrilateral rectangle AC rectangle contained remaining angle rhombus right angles right-angled triangle shew side BC sides equal square described square on AC THEOREM third angle triangle ABC triangle DEF truths twice the rectangle unequal