In the figure O is the centre of the circle. `angleAOC=80^@`
What is the measure of `angleABC`?

In the figure 'O' is the centre of the circle angle AOB = 100^@ find angle ADB

In the given figure ‘O’ is the centre of the circle and AB, CD are equal chords. If angleAOB = 70^@ . Find the angles of the Delta OCD

In the figure, O is the centre of the circle and AB = CD. OM is perpendicular on bar(AB) and bar(ON) is perpendicular on bar(CD) . Then prove that OM = ON.

In the figure, which circles are congruent to the circle A?

In the figure 'O' is the centre of the circle ,PT is a tangent and if anglePTO=30^(@) , find anglePOT

In the given figure, O is the centre of the circle and AD is a tangent to the circle at A. If |__CAD=50^(@) and |__ADC=30^(@) , find |__ABO .

In the figure, ‘O’ is the centre of the circle and OM, ON are the perpendiculars from the centre to the chords PQ and RS. If OM = ON and PQ = 6cm. Find RS

barPA and barPB are the tangents to a circle,with centre O as shown in figure.IF angleAOB=140^(@) ,then the measure of angleAPB is:

In the figure ,AB tangent to the circle with centre O.If angleAOB=30^(@) ,then angleA and angleB respectively are:

IN the given figure ,O is the centre of the circle.XY is a tangent.If anglePQY=55^(@),angleOPQ is: