Q. 34.5( 30 Votes )

In the figure, O is the centre of the circle and POR = 120°. Find PQR and PSR

Answer :

Given, POR = 120°

We know that “Angle subtended at the center is twice the angle subtended at circumference by the same chord”.



PQR = 60

Now, PQRS is a quadrilateral and angles on the opposite sides in the quadrilateral are supplementary.

PSR = 180- PQR

PSR = 180-60

PSR = 120o

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