pls answer the fourth quesstion
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hey mate here is your answer....
angle.OPQ=90-60=30.
angle OQP= 30 ( radius is equal)...
angle POQ= 120.
reflex angle of POQ= 240..
angle QRP= 240/2=120.
because an arc subtends half of angle on the circumference in comparison to the angle subtended on centre.....
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