A Secant is drawn from a point P to a circle so that it meets the circle first at A, then goes through the center. If the length of the tangent from P to the circle is 16 cm, and the radius of the circle is 12 cm, then the distance from P to A is?
Answer & explanation
Correct answer: option 2
OT ⊥ TP (∠OTP = 90°)
Using triplets = 12, 16, 20
OP = 20 cm
PA = OP - OA = 20 - 12 = 8 cm