Question

Questions below give me the angles for these

Answer 1

In 1) angle d=65
angle c =25




2) angle a =27
angle b =2c
126=2c
c=63


any doubt comment . .....

Answer 2

in (b) : angle a =27 (radii of circle )
now by angle sum property of triangle we can easily found angle b=180 -(27 +27) =180 -54
so b=126
now angle. c = b/2 = 126 /2 = 63 (angle at centre is double of angle at any point of circle)