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Q.

From the following options which of the following pairs of lines in a circle cannot be parallel?


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a

Two chords

b

A chord and a tangent

c

Two tangents

d

Two diameters 

answer is D.

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Detailed Solution

We need to find the a pair of lines in a circle that cannot be parallel.
The lines that do not intersect or meet each other at any point in a plane are parallel.
A diameter passes through the center of a circle and so any two diameters will be intersecting.
Thus, two diameters cannot be parallel as they perpendicularly bisect each other.
Therefore the correct option is 4.
 
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