Subject :IMO Class : Class 9
In the given figure (not drawn to scale), O is the centre of the circle. Find the value of x.
A30°
B44°
C42°
D50°
please specify whether CD is a straight or not. if it is a straight line then the figure is not correct. the being that triangle BOD is congruent to triangle BOC by SSS congruency. so by CPCT angle BOD and angle BOC is of 72 degrees. which doesn't satisfy that CD is straight line. as the sum of angles is 144 degrees not 180 degrees