I was appreciating the geometrydaily:

And got to noticing the always neat equliateral triangle proportions in the circle where the side length is the radius. So I have to fire up GeoGebra and start playing.#332 Totem – A new minimal geometric composition each day

I got fascinated by the lenses formed by the circular arcs trapped by the triangles, and started wondering about tangential lenses in osculating congruent circles. (Petals, I was thinking. Pretty petals.) This is the special case when the cutting chord is a radius. So I made a sketch to play with lenses of different length.

Now I'm quite curious about those special lengths of the petals. Here's the sketch if you'd like to play with it: teacher's page (download) and student's page (applet).

Other GeoGebra inspired by Geometry Daily:

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