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