三角形

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三角形の面積比とは？三角形の面積比の求め方を分かりやすく解説

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【三角形の面積比】です。三角形の面積比と言われても、これまで習ってきた「比」と何が違うのかピンとこない人も多いでしょう。今回はこんな疑問にお答えします。「習うより慣れよ」という...

図形の性質

三角比を使って正多角形や内接する円の問題を解く【数学IA】

みなさん、こんにちは。数学IAのコーナーです。今回の数学IAのテーマは【図形と計量】です。あと少しだけ、三角比と関連したさまざまな図形の性質を取り扱います。具体的には、三角比を利用して正多角形の問題や三角形に内接する円の問題を解いていきます...

図形と計量数学IA

【数学IA】三角形の面積を理解しましょう！

みなさん、こんにちは。今回の数学IAの今回のテーマは、【三角形の面積】です。たかしくん三角形の面積って小学校で習ったんじゃないの？そうです、その三角形の面積の求め方に、三角比の考え方を取り入れます。三角比についてきちんと理解していれば...

図形と計量数学IA

スポンサーリンク

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