In the diagram above ∠OPQ is?

An arc subtends an angle of 50º at the center of circle of radius 6cm. Calculate the area of the sector formed

The angle of a sector of a circle of diameter 8cm is 135°. Find the area of the sector [Take \(\pi\) = 22/7].

In the diagram, KS is a tangent to the circle centre O at R and ∠ROQ = 80º. Find ∠QRS.

An arc of circle of radius 2cm subtends an angle of 60º at the centre. Find the area of the sector