【センター試験(類題)】内心【超わかる！高校数学Ⅰ・a】～演習～図形の性質＃１０
Synopsis
【センター試験(類題)】内心のポイントは！ ・内心は、３つの内角の二等分線の交点！ ・角の二等分線の定理を疑おう！ ・二等辺 ...
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