Two intersecting circles and two common tangents. Prove that α = β.
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Solution
Poem
The fish trap
The river slowly is singing
The salmons prayer
It becomes a trap for fishes,
Especially for salmons
When they come up
To their birth place
The dams block their passage
Salmons are catched, anesthetized,
Please ban the fish traps,
Listen to the salmons prayer !
