The diagonals AC and BD of a parallelogram ABCD intersect each other at the O such that \[\angle \mathbf{DAC}=\mathbf{4}{{\mathbf{0}}^{{}^\circ }}\]and \[\angle \mathbf{AOB}=\mathbf{8}{{\mathbf{0}}^{{}^\circ }}\], Then \[\angle \mathbf{DBC}=\]?

The diagonals AC and BD of a parallelogram ABCD intersect each other a

1.	The diagonals AC and BD of a parallelogram ABCD intersect each other at the O such that \[\angle \mathbf{DAC}=\mathbf{4}{{\mathbf{0}}^{{}^\circ }}\]and \[\angle \mathbf{AOB}=\mathbf{8}{{\mathbf{0}}^{{}^\circ }}\], Then \[\angle \mathbf{DBC}=\]?
A.	\[{{40}^{{}^\circ }}\]
B.	\[{{35}^{{}^\circ }}\]
C.	\[{{45}^{{}^\circ }}\]
D.	\[{{50}^{{}^\circ }}\]
Answer» B. \[{{35}^{{}^\circ }}\]

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The diagonals AC and BD of a parallelogram ABCD intersect each other at the O such that \[\angle \mathbf{DAC}=\mathbf{4}{{\mathbf{0}}^{{}^\circ }}\]and \[\angle \mathbf{AOB}=\mathbf{8}{{\mathbf{0}}^{{}^\circ }}\], Then \[\angle \mathbf{DBC}=\]?

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