Free four

A unit circle with an inscribed square and four semicircles. What’s the sum of the semicircle areas?

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The sum of the semicircle areas is π.

Solution by MrHermannSTCS.


Like 2 bees watching each other
And pecking with honey
So lovely
The beehive is open
They’ll fly away
To look for flowers
And gather them
It’s a sweet tête à tête
The bees are having a party
They dream of being queen
The queens of pollen
They dream of spring
And of honeycomb


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