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In triangle ABC, AP=PQ,angle C=angle Q A...

In triangle ABC, AP=PQ,angle C=angle Q AP=6 centimetre, P B=8 centimetre, A Q =9 centimetre.
i) Write the pairs of equal angles from the figure.
ii) Prove that triangle A B C is isosceles.
iii) Find the perimeter of the trapezium PBCQ.

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