Shortest Path

POINT
Use reflection to turn the broken path into a straight-line shortest path.
Example
Construct point P on line ℓ so that AP + PB is minimized.
ABℓ

Practice

Try this construction yourself.

01
Construct point P on line ℓ so that AP + PB is minimized.
ℓAB

Please refer to the video above for the construction. If you have any questions, ask in the video comments.

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