Find the value of x in the given figure where TP (tangent on point T) = 15 cm, PB = 2x + 3 cm, PA = 9 cm.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 11 cm.
PT2 = PA × PB
⇒ 152 = 9 × (2x + 3)
⇒ 225 = 18x + 27
⇒ 18x = 225 - 27
⇒ 18x = 198
⇒ x = 11