能否用半径定为10cm的圆规划出半径为5cm的半圆？ 知乎 Sketch Coloring Page

能否用半径定为10cm的圆规划出半径为5cm的半圆？ 知乎 Template

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tomski能否用半径定为10cm的圆规划出半径为5cm的半圆？ 知乎 coloring

能否用半径定为10cm的圆规划出半径为5cm的半圆？ 知乎 sketch template

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