A and B are the centres of two circles with radii 11 cm and 6 cm respe – McqOptions

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1.	A and B are the centres of two circles with radii 11 cm and 6 cm respectively. A common tangent touches these circles at P and Q respectively. If AB = 13 cm., then the length of PQ is
A.	13 cm.
B.	17 cm.
C.	8.5 cm.
D.	12 cm.
Answer» E.

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