Question

Length of a tangent segment drawn from a point which is at a distance 15 cm from the centre of a circle is 12 cm , find the radius of the circle ​

Answer 1

Answer:

In △PAO:

Applying pythagoras theorem

⇒PA

2

+AO

2

=PO

2

⇒12

2

+r

2

=(12.5)

2

⇒r

2

=156.25−144

⇒r

2

=12.25

⇒r=

12.25

cm

solution