H
E
E
L
E
M
E
N
T
S
the remaining angle MLN is equal to the angle EDF. [I.32]
Therefore
the triangle LMN is equiangular with the triangle DEF;
and
is has been circumscribed about the circle ABC.
Being what it was required to do.
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T H E E L E M E N T S |
Book IV Proposition 3 | |
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It was proved that the angle LMN is equal to the angle DEF and the angle LNM
to the angle DFE; therefore the remaining angle MLN is equal to the angle EDF. [I.32] Therefore the triangle LMN is equiangular with the triangle DEF; and is has been circumscribed about the circle ABC. Being what it was required to do. |
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