In the diagram, POQ is a diameter, 0 is the centre of the circle and TP is a tangent. Find the value of x

In the diagram above, QR // TS, QR : TS = 2.3, Find the ratio of the area of triangle PQR to the area of the trapezium QRST.

Three angles of a nonagon are equal and the sum of six other angles is 1110^o. Calculate the size of one of the equal angles.

In the figure, find the value of x