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AH is equiangular with CE;
and
they have the sides about their equal angles proportional;,
therefore
the rectilineal figure AH is similar to the rectilineal figure CE. [VI.Def.1]
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T H E E L E M E N T S |
Book VI Proposition 18 | |
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Therefore AH is equiangular with CE; and they have the sides about their equal angles proportional;, therefore the rectilineal figure AH is similar to the rectilineal figure CE. [VI.Def.1] |
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