Two circles touch each other internally....

Two circles touch each other internally. Their radii are respectively 4 cm and 6 cm. What is the maximum length of chord of outer circle which lies out side the inner circle.

A

`4 sqrt2` cm

B

`4 sqrt3` cm

C

`6 sqrt3` cm

D

`8 sqrt2` cm

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The correct Answer is:

D

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