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Given circle O with AB || CD.
MAB = 8x +50, MAC = 5x +30, mBD=9x - 10

Given circle O with AB || CD. MAB = 8x +50, MAC = 5x +30, mBD=9x - 10-example-1
User Chao Luo
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Given circle O with AB || CD. MAB = 8x +50, MAC = 5x +30, mBD=9x - 10-example-1
User WinkerVSbecks
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