In figure, O is the centre of radius 5 cm. OP⊥AB , OQ⊥CD, AB∥CD, AB= 6cm and CD= 8cm. Determine PQ.

In figure, O is the centre of radius 5 cm. $O P ⊥ A B, O Q ⊥ C D, A B ∥ C D$ , AB= 6cm and CD= 8cm. Determine PQ.

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