SOLUTION: The diagonal of a rectangle PQRS intersect each other at O. if angle ROQ=40°, find the measure of angle OPS ?

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Question 928833: The diagonal of a rectangle PQRS intersect each other at O. if angle ROQ=40°, find the measure of angle OPS ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
OPS=40
If I bisect PS through O creating point M in PS, it splits the OPS equally to form MOP and MOS.
MOP=MOS=20
and
MOP%2BOPS%2B90=180
MOP%2BOPS=90
20%2BOPS=90
OPS=70