Circles Test - ...

In the given figure, O is the centre of the circle .What is the value of $$x?$$

If the perimeter and the area of a circle are numerically equal, then the radius of the circle is

In the figure ,O is the center of the circle. The value of $$(2a + b + C)$$ in

In the figure given, $$O$$ is the center of the circle, if $$\angle PAB=108^{o}$$, then find $$\angle BCQ$$.

In the given quadrilateral $$PQRS $$, if $$ \angle RSP = {80}^{0} $$, then $$ \angle  RQT= $$ ____.

An arc subtends an angle of $$45^{o}$$ in its alternate segment then the angle made by its corresponding major arc is at the centre 

In the given circle, $$AD=BC,\angle BAC={30}^{o}$$ and $$\angle CBD={70}^{o}$$
Find
$$(i)\,\angle BCD$$
$$(ii)\,\angle BCA$$
$$(iii)\,\angle ABC$$
$$(iv)\,\angle ADB$$

In figure, $$O$$ is the centre of the circle, then 

BC is the diameter of a circle. Points A and D are situated on the circumference of the semi circle $$\angle$$ABD$$=35^o$$ and $$\angle$$BCD$$=60^o$$, $$\angle$$ADB equal to?

$$ABCD$$ is a cyclic quadrilateral such that $$\angle ADB=30^{o}$$ and $$\angle DCA=80^{o}$$, then $$\angle DAB=$$?