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Felt-Tip Geometry – Math with Bad Drawings
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Geometry Puzzles in Felt Tip: A... by Shearer, Catriona
Geometry Puzzles in felt tip – GeoGebra
Geometry Puzzles in Felt Tip: A... by Shearer, Catriona
Geometry Puzzles in felt tip – GeoGebra
Felt-Tip Geometry – Math with Bad Drawings
