Chapter 9.1, Problem 5CE

Solution

To identify: a tangent to the given circle with centre O.

  $\overleftrightarrow{LH}$

Given:

The figure:

Concept Used:

Definition:

Tangent: It is a line which lies in the same plane as the circle O and intersects the circle at only one point.

Explanation:

Consider the given figure:

Now, it can be observed that the line $\overleftrightarrow{LH}$ intersects the given circle at exactly one point namely L , so by the above definition, it is a tangent to the given circle.