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12. ABC üçgen |AD| = |DC| = |AE| m(EDC) = 15° e 115 с B D olduğuna göre, m(ADB) kaç derecedir? A) 110 B) 100 C) 90 E) 60 D) 8
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Solutions given that 190 E bx 180-X 2150 + D C in BADE fielen. AD= IAR LADE-LAED. opposite angles of equal sides are equal] la. LAED and LOFC ar linear pair, LAEDELDEC=180 LDFC = 180 -1 from © 15+ y -- 0 + y = 8-15-③ from CU Naisten a 180 30= 195 = 6

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