Answer:
106°
Explanation:
ΔDCB is equilateral which means it must also be equiangular; each angle is 60°
ΔABD is isosceles because AB=BD so ∡ADB=∡BDA
∡ABD = 180-(67 + 67) = 46
∡ABC = ∡ABD + ∡DBC
∡ABC = 46 + 60
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