question_answer

\[\Delta \text{ABC}\] is right-angled at C. If p is the length of perpendicular from C to AB and AB = c, BC = a and CA = b, which of the following is true?

A)  \[\text{pc}=\text{ab}\]                               

B)  \[\text{pb}=\text{ab}\]

C)  \[\text{pc}=\text{bc}\]                               

D)  \[\text{pb}=\text{ac}\]