Two equilateral triangles share a vertex. What’s the angle α?
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Solution
The angle α is 120°.
Poem
The common point
We share today
Is the earth that shelters us
From North to South
From East to West
We all go the same way
Living in a precious planet
A jewel in a box we cannot forget
Our Earth is a golden globe
A warmer place for everyone
Cause here on Earth we are all born