A) \[50{}^\circ \]
B) \[35{}^\circ \]
C) \[40{}^\circ \]
D) \[45{}^\circ \]
Correct Answer: A
Solution :
We know that, the diagonals of a rhombus bisect each other at right angles. So, \[\angle AOB=90{}^\circ \] Now, \[\angle OAB+\angle ABO+\angle AOB=180{}^\circ \] \[\Rightarrow \]\[40{}^\circ +x+90{}^\circ =180{}^\circ \Rightarrow x=50{}^\circ \]You need to login to perform this action.
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