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AB=AC/sin30°になる仕組み?が分かりません…😭

15. A Y5 1 30° s 81 45 B D C
AC AB= =1- =2 sin 30° 2 AC 1 /3 V3 BC= ニ tan 30°

Answers

Answers

図中で、
sin30°= AB/AC なので、
AB = AC/sin30°と表せます。

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