Answer:
D. 123
Step-by-step explanation:
If angle BAC is 57, then so is the one opposite to it, angle BCD. So together, they would make 114 degrees (57 +57).
If there are a total of 360 degrees in a rhombus and 114 are taken up, then that means we have 246 degrees left (360 - 114 = 246).
These 246 degrees are equally shard by angles B and D. Therefore, we just have to divide by 2 to get the answer:
246 / 2 = 123. And that's your answer!
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