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O is the centre of the circle. The distance between P and Q is 4 cm. Find angle ROQ. ( radius = 2cm. angle pro = 35. )

can u pls give the fig


PO = RO (radius)
there for POR is an  isosceles triangle
RPO= 35
∠ORP+∠RPO+∠POR =180° (angle sum prop)
35°+35°+∠POR          =180°
               ∠POR          =180-70
∠POR+∠ROQ =180° (supplementary angles)
           ∠ROQ  =180-110

0 0 0
It is Diameter
Dont u Know???? Diameter is a Straight Line
i am not telling that. i do know that.
i am asking how can we determine that p, o and q are in a straight line when it is never told in the question nor it is shown in the figure.
nor it is said that poq is the diameter
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