In the adjacent figure, AB is a chord of circle with centre O. CD is the diameter perpendicualr to AB. Show that AD = BD

In the adjacent figure AB || CD. Find the value of x, y and z.

In the adjacent figure, there are two concentric circles with centre ‘O’. Chord AD of the bigger circle intersects the smaller circle at B and C. Show that AB = CD.

In the figure, O is the centre of the circle. Find the length of CD, if AB = 5 cm.

In the adjacent figure AB || CD. Find the values of x, y and z.

AB is a diameter and AC is a chord of the circle with centre at Q. the radius parallel to AC intersect the circle at D. Prove that D is the mid-point of the are BC.

AD and AC are two equal chords of a circle with centre O. AB is the diameter of the circle. If angleCOD =140^@ , then angleOBC =

AB and AC are two such chords of the circle with centre at O that each is perpendicular..., r to the other. If AB=4 cm and AC=3 cm, then find the radiu of the circle.

In the adjoining figur, O is the centre of the circle and AB is a diamter. If AB and CD are mutually perpendicualr to each other and angle ADC=50^(@) , then the value of angle CAD

In the adjoining figure, O is the centre of a circle and AB is one of its diameters. The legth of the chrod CD is equal to the radius of the circle. When AC and BD are extended, they intersect each other at a point P. find the value of angle APB

In the adjacent figure, AB be diameter of a circle whose centre is O. If angleAOE = 150^@ , angleDAO =51^@ then the measure of angleCBE is___