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Using the diagram, answer the following questions.

- ∠ABD and ∠DBC are supplementary angles. If the m∠DBC = 81 find the measure of ∠ABD.

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- ∠ABD and ∠DBC are supplementary angles. If the m∠ABD = 99 find the measure of ∠DBC.
- m∠DBC = 81