We know that the line drawn from the centre of the circle to the tangent is perpendicular to the tangent.
OP Ʇ PQ
By applying Pythagoras theorem in ΔOPQ,
OP2 + PQ2 = OQ2
52 + PQ2 =122
PQ2 =144 - 25
PQ = cm.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation