三角形の面積:不思議
三角形の面積:不思議
世の中には本当に不思議なことがたくさんありますけど、ちょっとこの不思議は度が過ぎています。
三角形の面積の不思議
まったくわけがわからない…。
【追記】
どうやら、これはとても有名なひっかけ問題だったみたい。大騒ぎして恥ずかしいです。
こうやって人はだんだん大人になっていくのでしょうね。
しかし、未だに最初の図がわからない。一つの三角形として計算した場合と、一つ一つの図形の合計として計算した場合、なぜ値が食い違うのか?
【追記】
Guruさんのアドバイスで心から納得。
要するに、8:3と5:2は、40:15と40:16になるので、私が一つの三角形と見ていたものは、実は四角形だったということ。うーん、くやしい…。
アフィリエイトで本当にこうなりました(笑)
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