По теореме синусов:
BC : sin∠A = AC : sin∠B
AC = BC · sin∠B / sin∠A
AC = 3√6 · sin60° / sin45°
AC = 3√6 · √3/2 / (√2/2) = 3√6 · √3/2 · 2/√2 = 9
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По теореме синусов:
BC : sin∠A = AC : sin∠B
AC = BC · sin∠B / sin∠A
AC = 3√6 · sin60° / sin45°
AC = 3√6 · √3/2 / (√2/2) = 3√6 · √3/2 · 2/√2 = 9