In the picture, O is the centre of the circle and A, B, C are points on it. Prove that` /_OAC`+ `/_ABC=90^@`

In the figure, O is the centre of the circle and A,B,C,D are points on it. If angleB=110^o , then What is the measure of angleAOC ? .

In the figure, O is the centre of the circle and A,B,C,D are points on it. If angleB=110^o , then What is the measure of angleD ? .

In the figure below, O is the centre of the (circ)le and A, B, C are points on the (circ)le. What are the angles of Delta ABC ?

In the figure, O is the center of the circle and A B and CD are chords with AB=CD Prove that angle < OAB=< OCD

In the figure, Ois the centre of the circle and AB, CD are chords with angle O A B=angle 0 C D Rrove that A B=C D.

In the figure, O is the centre of the circle squareA=60^o . squareC =______ .

In the figure, O is the centre of the circle squareA=60^o . squareBOD =______ .

In the figure P is the centre of the circle A,B and D are points on the circle. angleP=90^o , AD=5 centimetres Find the area of the parallelogram ABCD . .

In the figure P is the centre of the circle A,B and D are points on the circle. angleP=90^o , AD=5 centimetres What is the measure of angleA ? .