In the figure, O is the centre of a circle of radius 29 cm, OP ⊥ AB, OQ ⊥ CD and AB is parallel CD. If AB = 40 cm and CD = 42 cm, then the length of PQ is:

In the figure, O is the centre of a circle of radius 29 cm, OP ⊥ AB

1.	In the figure, O is the centre of a circle of radius 29 cm, OP ⊥ AB, OQ ⊥ CD and AB is parallel CD. If AB = 40 cm and CD = 42 cm, then the length of PQ is:
A.	41 cm
B.	20 cm
C.	32 cm
D.	21 cm
Answer» B. 20 cm

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In the figure, O is the centre of a circle of radius 29 cm, OP ⊥ AB, OQ ⊥ CD and AB is parallel CD. If AB = 40 cm and CD = 42 cm, then the length of PQ is:

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