Correct answer: 1
Explanation:
From a point on the circle, exactly one tangent can be drawn.
This tangent is perpendicular to the radius at the point of contact.
Hence, the number of tangents from a point on the circle is 1.
$PQ$ is a chord of length $4\ \text{cm}$ of a circle of radius $2.5\ \text{cm}$. The tangents at $P$ and $Q$ intersect at a point $T$. Find the length of $TP$.