The lenght of a tangent from a point A at a distance 5 cm and 3 cm.find the radius of the circle

The lenght of a tangent from a point A at a distance 5 cm and 3 cm.fin

1.	The lenght of a tangent from a point A at a distance 5 cm and 3 cm.find the radius of the circle
Answer» Answer will be 4cm.