Circles Test - ...

In Fig 10.4 if $$\displaystyle \angle ABC = 20^{\circ}$$ then $$\displaystyle \angle AOC $$ is equal to

In Fig 10.7 if $$\displaystyle \angle DAB=60^{\circ},\angle ABD= 50^{\circ}$$ then $$\displaystyle \angle ACB$$ is equal to

In the given figure $$O$$ is the centre of the circle and $$\displaystyle \angle AOC=120^{\circ}$$. What is the value of $$\displaystyle \angle APC+\angle ABC$$?

Fixed point in the circle is called _____ of the circle.

In the given figure, $$\displaystyle \triangle ABC$$ is an equilateral triangle. What is the value of $$\displaystyle \angle BEC$$?

In the figure, $$O$$ is the center and $$\angle ACB=20^°$$. Then the $$\angle AOB$$ is equal to

In the figure, $$O$$ is the center, then $$\angle ACD$$ equals

What is name of following shape ?

In the figure shown above, the radius $$OA$$ is equal to the chord $$AB$$. Then, what is $$\angle APB$$?

From the figure, identify the center of the circle.