T H E E L E M E N T S |
Book VI Proposition 12 | |
Since, then, GH has been drawn parallel to EF, one of the sides of the triangle DEF; therefore as DG is to GE, so is DH to HF. [VI.2] But DG is equal to A, GE to B, and DH ot C; therefore as A if to B, so is C to HF, |
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