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let the sides AB, AC of the triangle ABC be cut proportionally,
so that
as BD is to DA so is CE to EA,
and
let DE be joined.
I say that
DE is parallel to BC.
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T H E E L E M E N T S |
Book VI Proposition 2 | |
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Again let the sides AB, AC of the triangle ABC be cut proportionally, so that as BD is to DA so is CE to EA, and let DE be joined. I say that DE is parallel to BC. |
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