Question

$AB$ and $CD$ are two chords of a circle which intersect each other internally at $P$.

(i) If $CP=4cm,AP=8cm,PB=2cm$, then find $PD$.
(ii) If $AP=12cm,AB=15cm,CP=PD$, then find $CD$

Answer 1

(i) $4cm$
(ii) $12cm$