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I say that
as the base BC is to the base CD,
so is the triangle ABC to the triangle ACD
and
the parallelogram EC to the parallelogram CF.
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T H E E L E M E N T S |
Book VI Proposition 1 | |
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Let ABC, ACD be triangles and EC, CF parallelograms under the same height; I say that as the base BC is to the base CD, so is the triangle ABC to the triangle ACD and the parallelogram EC to the parallelogram CF. |
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