It doesn't seem to work for me? I can't connect the two points at the start. What am I supposed to do? None of the tools seem to be what I need?
Level 20 has either a lot of almost-solutions that look okay but aren't quite on, or isn't very good at detecting alternate solutions. I thought I got it three times before I followed someone else's directions and finally officially got it.
[spoilers] When I finally solved 20 it was by constructing the focus of the two circles and then the tangent through that focus, but I can't seem to get one based on this to work, and I really think it should.
I've taught constructions in Geometry and this would be a great help. However, the game doesn't allow an option that I've usually seen in pencil and paper constructions: when you've drawn a circle of some radius r and center P, you can then pick up the compass *while maintaining radius r* and draw another circle with radius r and center Q.
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