Q3 of 168 Page 5

In Fig. 4.137, . Find the length of PB.

We have ΔPAB and ΔPQR


<P = <P (Common)


<PAB = <PQR (Corresponding angles)


Then, ΔPAB ~ ΔPQR (BY AA similarity)


So, (Corresponding parts of similar triangle area proportion)


Or ,


Or PB = x 6


Or PB= 2cm


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