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swirling semi-circles

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Swirling Semi-Circles

Posted on Jun 14, 2020

Swirling Semi-Circles

The largest and smallest semicircles are concentric. What’s the shaded area?

Created on May 9, 2021 20:55:56 by Andrew Stacey
Views: Print | TeX | Source | Linked from: Catriona Agg's puzzles, Catriona Agg's puzzles 2020, swirling semi-circles techniques