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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 ………...
To do:
We have to fill in the blanks.
Solution:
(i) A tangent line to a circle is a line that touches the circle at exactly one point(the point of contact), never entering the circle's interior.
There is only one line parallel to a tangent and touching the circle at only one point.
Therefore, A tangent to a circle intersects it in one point. 
(ii) In geometry, a secant of a curve is a line that intersects the curve at a minimum of two distinct points.
Therefore, A line intersecting a circle in two points is called a secant. 
(iii) A tangent line to a circle is a line that touches the circle at exactly one point(the point of contact), never entering the circle's interior.
There is only one line parallel to a tangent and touching the circle at only one point.
Therefore,
A circle can have parallel tangents at the most two. 
(iv) A tangent line to a circle is a line that touches the circle at exactly one point(the point of contact), never entering the circle's interior.
Therefore,
The common point of a tangent to a circle and the circle is called point of contact. 
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