T H E E L E M E N T S |
Book IV Proposition 2 | |
The angle ABC was proved equal to the angle DEF, and
the angle ACB to the angle DFE; therefore the remaining angle BAC is also equal to the remaining angle EDF. [I.32] Therefore in the given circle there has been inscribed a triangle equiangular with the given triangle. Being what it was required to do. |
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