A straight line intersects with the trilateral BC, CA, AB (or its extension line) of △ABC at points D, E, F, respectively

author：Chengdu Tang teacher mathematics 2022-01-15 08:50:00

A straight line intersects the trilateral BC, CA, AB (or its extension line) with the trilateral BC, CA, AB (or its extension line) at the points D, E, F, respectively

Confirmation:

A straight line intersects with the trilateral BC, CA, AB (or its extension line) of △ABC at points D, E, F, respectively

Verify the existence of this equation

intersection straight line

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