Thread: question from Circle

1. question from Circle

$\textup{The chord of contact of tangents from a point P to a circle passes through Q.}$
$\textup{If 3 and 4 are the lenghts of tangents to the circle then length of PQ is???}$

2. question from circle

Originally Posted by banku12
$\textup{The chord of contact of tangents from a point P to a circle passes through Q.}$
$\textup{If 3 and 4 are the lenghts of tangents to the circle then length of PQ is???}$
The tangents to a circle from a point outside the circle are equal so you need to rewrite your problem

bjh

3. Also the radius of the circle is required to calculate the length of PQ.

4. Originally Posted by banku12
$\textup{The chord of contact of tangents from a point P to a circle passes through Q.}$
$\textup{If 3 and 4 are the lenghts of tangents to the circle then length of PQ is???}$
Do you mean something like this: