Prove that the perpendicular at the point of contact to the tangent to a circle passes through the centre.

The angle formed by the radius at the point of contact with a tangent is:

In the given figure, two circles touch each other externally at the point C. Prove that the common tangent to the circle at C bisects the common tangents at P and Q.

Prove that the tangents to a circle at the end points of a diameter are parallel.

The equation of circle having centre at (2,2) and passes through the point (4,5) is

The equation of the tangent to the circle x^2+y^2=25 passing through (-2,11) is

Prove that the tangent at any point of a circle is perpendicular to the radius through the point of contact.

Prove that the tangent at any point of a circle is perpendicular to the radius through the point of contact.

Prove that the tangent at any point of a circle is perpendicular to the radius through the point of contacts .

Prove that the tangent at any point of a circle is perpendicular to the radius through the point of tangent