T H E E L E M E N T S |
Book VI Proposition 11 | |
Since, then, BC has been drawn parallel to DE, one of the sides of the triangle ADE, proportionally, as AB is to BD, so is AC to CE. [VI.2] But BD is equal to AC; therefore as AB is to AC, so is AC to CE. |
||
Previous Page Return to Propositions Next Page |