In the adjoining figure, O is the center of the circle and AC is a diameter of it If DC||EB, `angleAOB=80^(@)andangleACE=10^(@)` , then find the value of `angleBED.

In the adjoining figure ,O is the center of the circle and AB is a diameter. If angleAOD=140^(@)andangleCAB=50^(@) , then find value of angleBED

In the adjoining figure, O is the centre of the circle and AC is its diameter. If angleBAC=30^@ , then find angleBOC .

In the adjoining figure, O is the centre of the circle and AC is its diameter. If angleBAC=30^@ , then find angleBOC .

In the adjoining figure, O is the centre of the circle. Find the value of angle BEC .

In the adjoining figure, O is the centre of the circle. Find the value of angle BEC .

In the adjoining figure, O is the centre of the circle and AB is a diameter. ABCD IS A CYCLIC QUADRILATERAL . If angleABC=65^(@),angleDAC=40^(@) , then the value of angleBCD is

In this figure, O is the centre and AC is the diameter. If angleAOB= 80^@ and angleACE = 10^@ then find the value of angleBED .

In the adjoining figure, O is the centre of the circle. AB is an arc of the circle and /_AOB=80^(@) . Find /_ACB .

In the given figure O is the centre of the circle AC and BD intersects at P. If angleAOB=100^(@) and angleDAP=30^(@) then what is the value of angleAPB ?

In the adjoining figure, AB=AC .Find the value of x