T H E E L E M E N T S |
Book I Proposition 38 | |
Then each of the figures GBCA, DEFH is a parallelogram; and GBCA is equal to DEFH; for they are on equal bases BC, EF and in the same parallels BF, GH. [I.36] Moreover the triangle ABC is half of the parallelogram GBCA; for the diameter AB bisects it. [I.34] And the triangle DEF is half of the parallelogram DEFH; for the diameter DF bisects it. [I.34] |
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