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https://www.acapela-box.com/AcaBox/index.php

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Quelques mots de vocabulaires essentiels.

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This video is about a problem from Ancient Greeks.
They tried to construct a square with the same area of circle.
The problem was solved in 1882.
Ancient greeks had to work using only straight edge and compass.

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Mathematics basis - Vocabulary and listening

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Why squaring the circle - the old-fashioned way - was found to be impossible?