A tangent at any point of a circle is perpendicular to the radius through the _____.

Theorem 10.1 : The tangent at any point of a circle is perpendicular to the radius through the point of contact.

Assertion(A) At a point P of a circle with centre O and radius 12cm , a tangent PQ of length 16cm is drawn. Then, OQ=20cm . Reason (R ) 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 circle is perpendicular to the radius through the point of contact.

Theorem: A tangent to a circle is perpendicular to the radius through the point of contact.

A Tangent to a circle is perpendicular is perpendicular to the radius through the point of contact.

The tangent at any point of a circle is ............ to the radius through the point of contact.

Fill in the blanks: The common point of a tangent and the circle is called...... A circle may have ..... parallel tangents. A tangent to a circle intersects it in ..... point(s). A line intersecting a circle in two points is called a ........ (v) The angle between tangent at a point on a circle and the radius through the point is .........

A tangent AB, at a point A of a circle of radius 5 cm, meets a line through the centre O at point B such that OB =12 cm. Length AB is