Since the Rhombus have all equal side lengths, then the true statement about Angle MSR is that It must be a right angle.
Note that  RO and HM are said to be diagonals of the rhombus and they also intersects each other.
Since ∠MSR +∠RSH =180° Â
Then, ∠MSR +∠MSR=180°     Â
So  ∠MSR =90°
So therefore, ∠MSR is said to be a right angle.
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