ACDBE is a circle in which AB is a diameter and CD is a chord parallal to AB. If `angle BEC=36^@`, find `angle BCD`

In the given figure, AOB is a diameter of a circle and CD||AB. If angle BAD = 30^(@) , then angle CAD = ?

AB and CD are diameters of a circle with centre O. If angle OBD = 50^@ , find angleAOC

Two chords AB and CD of a circle intersect at A, AB is the diameter and CD is bot to AB .AE = 2 cm AB = 10 cm,Find value of ED.

In the figure, AB is the diameter of the circle. If angle AOC = 135^(@) then find the angle CDB .

AB is the diameter of a circle which centre is O. DC is a chord where DC||AB. Accordingly if angleBAC=20^(@) , then find the angleCOD .

A circle, with centre O, circumscribs a pentagon ABCDE. IF AB- BC= CD and angle BCD = 126^(@), find: angle AEB

A circle, with centre O, circumscribs a pentagon ABCDE. IF AB- BC= CD and angle BCD = 126^(@), find: angle AED

A circle, with centre O, circumscribs a pentagon ABCDE. IF AB- BC= CD and angle BCD = 126^(@), find: angle AOC

In circle given below . O is its centre and lengths of chords AB and CD are in the ratio 5 :3 If angle AOB = 100^(@) , find : (i) angle COD