Move the earth

A square containing a semicircle, a tangent and a line segment from the tangency point. What fraction is green?

Scroll down for a solution to this problem.


The green fraction is 3/40.

Solution by Dmitriy Spiridonov.


Should we move the earth
Farther away from the sun ?
Today temperature are increasing
But this could be risquy
And dangerous for humanity
And what about our sister
The moon ?
What would happen?
Let’s move heaven and earth
And work very hard
For Love,
Friendship and


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