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メネラウスの定理とは？覚え方のコツを解説&問題演習つき

みなさん。こんにちは。数学1Aの勉強で今回は【図形の性質】について、その中でも特に「メネラウスの定理」を詳しく解説していきます。メネラウスの定理は、それ単体で出題されることもあれば、正三角形や二等辺三角形の性質などと組み合わせた問題が出...

方べきの定理とは？方ベきの定理の証明と公式の簡単な覚え方【数学IA】

みなさん、こんにちは。数学ⅠAのコーナーです。今回のテーマは【方べきの定理】です。たかしくん方べきの定理って覚えられないや。テストに出なければいいのに…。たかしくんの期待とは裏腹に、方べきの定理の問題は毎年のように大学入試で問われるの...

チェバの定理とは？その覚え方と証明を解説（演習問題つき）

みなさん。こんにちは。数学1Aの勉強で今回は【図形の性質】について、その中でも特に「チェバの定理」を詳しく解説していきます。一筆書きで理解なんて聞いたことがあるかもしれませんね。この分野はセンター試験で頻出、というわけではありませんが...

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