In the diagram, POQ is a diameter, 0 is the centre of the circle and TP is a tangent. Find the value of x
A.
30o
B.
40o
C.
45o
D.
50o
Correct answer is A
From the diagram, POQ is a diameter; o is the centre of the circle and TP is a tangent where RTP = 30o
RTP = RQP = x(at circumference = made by tangent outside the circle) i.e x = 30o