A trapezium with its inscribed circle. Two tangency points are shown. What’s red / blue – yellow / green?
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Solution
Red / blue – yellow / green is 0.
Poem
The wedge
When we were small
For a yes
For a no
At school
We went to the corner punishment
I knew well every corner
I was too talkative
And such a dreamer
The schoolmistress
Was always punishing
But without success
I loved this time out
At school
The corners were my favorite
