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感覚と数（正三角形らしく見えますか？）

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正三角形を分度器を使わずにそれらしく描くヒントになるかもしれません。

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Zen Suzuki — December 20, 2020 - 1:50 PM

Resource Type: Activity
Tags: angle arithmetic collection constructions diagrams equilateral-triangle game geometry integers limits math numbers plane-figures planes rational-numbers ratios sequences-and-series triangles tutorial web Show More…
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Target Group (Age): 0 – 19+
Language: Japanese / 日本語‎

Views: 357

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License: CC-BY-SA, GeoGebra Terms of Use

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