Fill in the blanks:

**(i)** A tangent to a circle intersects it in ………… point(s).

**(ii)** A line intersecting a circle in two points is called a………….

**(iii)** A circle can have ………………. parallel tangents at the most.

**(iv)** The common point of a tangent to a circle and the circle is called…………

**(i)** One

**(ii)** Secant

**(iii)** Two

**(iv)** Point of contact.