T H E E L E M E N T S |
Book I Proposition 40 | |
Therefore the triangle GEF is equal to the triangle ABC, for they are on equal bases BC, EF and in the same parallels BF, AG. [I.38] But the triangle DEF is equal to the triangle ABC; (hypothesis) therefore the triangle GEF is also equal to the triangle DEF, [C.N.1] |
||
Previous Page Return to Propositions Next Page |