Question

The chords AB and CD intersect at the point P.if PA =9cm ,PD=12cm , AB=13cm
find the lengths of PB ,PC ,CD​

Answer 1

Answer:

PB=4cm

PC=3cm

CD=15cm

Step-by-step explanation:

given that PA=9 and AB=13

then, PB= 13-9 =4

given PD=12, and to find PC

Now, we know , PA×PB = PC×PD

hence, 9×4 = PC×12

PC=3

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Answer 2

how did get this

i can't understand