【中学受験算数】平面図形・角度・長方形の折り曲げ【最難関クラス・偏差値up】

2023 3:58
Synopsis
長方形の折り曲げの角度を問う問題です。角度を〇や×でおいて消去算にしていくと出来そうですが、ちょっとややこしいですね。
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