Question

answer this question correctly or I'll report​

Answer 1

$\huge\mathfrak\red{Answer}$

Given, CP=4 cm, AP=8 cm and PB=2cm.

Let PD=x

We have AP×PB=CP×PD

⇒8×2=4×x

⇒16=4x 

          

⇒x=4           

Thus, PD=4 cm