If a circular paper disc is trimmed in such a way that its circumference is reduced in the ratio 2:5, In what ratio is the surface area reduced?

In the figure, PS = SR and Rx is a tangent to the circle at R, < QRX is equal to 72o.  Find angle SPR

In the diagram, PQR is a circle with center O. If ∠OPQ = 48°, find the value of M.

In the diagram, O is the center of the circle. \(\overline{PQ}\) and \(\overline{RS}\)  are tangents to the circle. Find the value of (M + N).

In the diagram, O is the centre of the circle PQRS, ∠PQR = 72° and OR is parallel to PS. Find ∠ OPS.