Let PQ be a tangent to a circle at A and AB be a chord. Let C be a point on the circle such that `/_BAC = 54^@` and `/_BAQ = 62^@. `Find `/_ ABC`.

How many chords can be drawn through 12 point on a circle?

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

The end - point of a diameter of a circle are (-1,4) and (5,4) . The the eqauation of the circle is

How many chords can be drawn through 15 points on a circle?

How many chords can be drawn through 20 points on a circle?

How many chords can be drawn through 21 points on a circle?

A (6, 0) is a point on a circle with center (0, 0).Find the radius of the circle.

How many chords can be drawn, through 23 points on a circle?

O is the center of a circle having a chord AB.AB=12, angleAOB = 120^@ .Find the radius

In the figure, O is the centre of both the circles. AB and AC touch the small circle at P and Q.A,B and C are points on the large circle. Prove that Ab=AC . .