B A [BA // IEF 120° C110 F m(B) = 120° m(C) = 110° m(D) = x m(E)= y = E D Yukarı A) 50 Yukarıdaki verilere göre, y - x farkı kaç derecedir? A) 50 B) 60 C) 70 D) 80 E) 90 11. 8. [BA // [EF B 259 Х m(B) = 25° m(E) = 45° m() = x m(D) = y Yukand 45°E A) 80 F 252 Yukarıdaki verilere göre, x + y toplamı kaç derecedir? A) 210 B) 220 C) 230 D) 240 E) 250 12. 9. [BA // [FK
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