The angle on the same segment are equal, hence; <BDc = m<BAC = 56 degrees
Circle geometry
According to the attached image, we are given the following parameter;
m<BAC = 56 degrees
From the figure, we can see that m<BAC and m<BDC are on the same segment and since the angle on the same segment are equal, hence; <BDc = m<BAC = 56 degrees
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