【中学受験算数】平面図形 長方形内の二等辺三角形で直角を作れ‼ 2007年 青稜中【最難関クラス/偏差値up】

2023 5:27
Synopsis
三平方の定理が使えれば簡単なんですが…… まずは図形内にわかる情報をかきこんでいきます。二等辺三角形をどう生かすかが ...
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