In the diagram, the tangent MN makes an angle of 55o with the chord PS. IF O is the centre of the circle, find
-
A.
55o -
B.
45o -
C.
35o -
D.
25o
Correct Answer: Option C
Explanation
Join SRo(Angle in a semicircle)o (Angle between a chord and a tangent = Angle in the alternate segment)o
90v + 55o + oo – 145o
= 35o