При яких з наведених умов ∆ABC ∾ ∆A1B1C1?

A. ∠A = ∠A1 = 30°;

Б. ∠A = ∠A1; ∠B = 40°; ∠B1 = 50°;

B. ∠B = ∠B1; ∠C = 47°; ∠C1 = 47°;

Г. ∠A = ∠A1; ∠B = 150°; ∠C1 = 150°
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