If Figure, `A O C` is a diameter of the circle and are `A X B=1/2` arc `B Y Cdot` Find `/_B O C`

If Figure, A O C is a diameter of the circle and arc A X B=1/2 arc B Y Cdot Find /_B O C

In Figure, O is the centre of the circle. Find /_B A C

In Figure, O is the centre of the circle. Find /_C B D

In Figure, O is the centre of the circle and the measure of arc A B C is 100^0dot Determine /_A D C\ a n d\ /_A B C

In Figure, it is given that O is the centre of the circle and /_A O C=150^@ . Find /_A B C

In Figure, O is the centre of the circle and B C D is tangent to it at Cdot Prove that /_B A C+/_A C D=90^0 .

In the given figure A B is the diameter of the circle, centred at Odot If /_C O A=60^0,A B=2r ,A C=d , and CD=l

A B\ a n d\ C D are diameters of a circle with centre Odot If /_O B D=50^0, find /_A O C

In Figure, A B and C D are two diameters of a circle perpendicular to each other and O D is the diameter of the smaller circle. If O A=7\ c m , find the area of the shaded region.

In the figure, O is the center of the circle. What is average of the numbers a, b, c and d?