Circles Test - ...

In a circle of radius 17cm two parallel chords of the length 30cm and 16cm respectively are drawn on the opposite sides of the centre. Then  the distance between them  is

In the given circle with centre $$'O'$$, the mid points of two equal chords $$AB$$ & $$CD$$ are $$K$$ & $$L$$, respectively. If $$\angle$$ $$OLK =$$ $$25^{\circ}$$, Then $$\angle$$ $$LKB$$ is equal to:

$$ABCD$$ is a cyclic quadrilateral. If $$\angle  A-\angle C=30^{\circ}$$, then $$ \angle  C =$$?

Find the four angles of a cyclic quadrilateral ABCD in which $$\angle A=(2x-1)^o, \angle B=(y+5)^o, \angle C=(2y+15)^o$$ and $$\angle D(4x-7)^o$$

In the given figure, $$POQ$$ is the diameter of the circle with center $$O$$. Quadrilateral $$ PQRS$$ is a cyclic quadrilateral and $$SQ$$ is joined. If $$\angle R = 138^\circ$$, then $$m\angle PQS$$ is:

In the given figure, $$ABCD$$ is a cyclic quadrilateral in which $$\angle BAD = 120^o$$. Then $$m\angle BCD$$ is:

In the given figure, if $$\angle AOC=110^o$$, then the values of $$\angle D$$ and $$\angle B$$, respectively are:

$$ ABCD$$ is a cyclic quadrilateral, then the angles of the quadrilateral in the same order are:

In the figure, $$\angle BAD = 70^{\circ}$$, $$\angle ABD = 56^{\circ}$$ and $$\angle ADC = 72^{\circ}$$.