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the side BC of the triangle ABC is produced to D,
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the exterior angle ACD is greater than either of the interior and opposite angles CBA, BAC.
Being what is was required to prove.
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T H E E L E M E N T S |
Book I Proposition 16 | |
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Therefore, if the side BC of the triangle ABC is produced to D, then the exterior angle ACD is greater than either of the interior and opposite angles CBA, BAC. Being what is was required to prove. |
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| Previous Page Return to Propositions Seq.2: I.27 | ||