На рисунке прямые AF и DE – параллельные прямые, ∠A:∠C = 3:4, ∠B:∠D = 2:3 и ∠A + ∠C = 168°. Определи, чему равны углы A, B, C, D.

Ответ: ∠A =
, ∠B =
, ∠C =
, ∠D =
.​
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