A circle containing three squares. What fraction is coloured?
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Solution
A fraction of 2/π is coloured.

The angles AFB and EFD are 180°, because AEBD is a cyclic quadrilateral and F divides the chords according to the intersecting chords theorem.
Find here an animated solution by Ignacio Larrosa Cañestro.
Poem
The Satellite
Exist in the Solar System but not only
The moon is so famous
Shining daily,
For lovers and poetry
For J. Keppler, the satellites accompany the travel through the heavens
Of the planets journey
Than Sputnik became a new terminology
For artificial objects mostly

One reply on “The satellite”
Another 2nd way