Question

If PA and PB are tangents from an outside point P such that PA = 9 cm and angle APB = 60° .find the length of the chord AB.

Answer 1

Tangents from an exterior point are equal
Therefore PA=PB which means
AnglePAB=AnglePBA =60
( angle sum property of triangle )
So PAB is an equilateral triangle because all three angles are equal to 60
Therefore,
AB=PA=PB=9cm
AB=9cm

Answer 2

this is required answer