The standard proof, the elegant proof, and the proof without words of tasks in geometry, and their dynamic investigation
2016 ◽
Vol 47
(8)
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pp. 1226-1243
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2021 ◽
Vol 279
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pp. 121298
2013 ◽
Vol 9
(9)
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pp. 1556-1569
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2008 ◽
Vol 21
(11)
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pp. 115003
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