Stengel's Theorem
Stengel's Theorem
Let ABC be a triangle. Let E, D, and G be points on AB, BC, and AC, respectively. Let EC intersect AD at F. Choose points I, J, and H so that EI || BG || FJ || DH.
Then +=+.
1
EI
1
DH
1
FJ
1
BG
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