Level 13: Transforming Heptagon

The grand finale! This heptagon features seven proportional points. There's a big mix of functions here; remember that a 1-f(t) type function will essentially reverse the direction of the motion, which you can probably see is going on here. I've also included the area calculation of the morphed heptagon; notice how little it changes relative to the changes in shape. Good luck!

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Area

App generated by Geometry Expressions