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There are two circles which touch each other externally. The radius of the first circle with centre O is 17 cm and radius of the second circle with centre A is 7 cm. BC is a direct common tangent to these two circles, where B and C are points on the circles with centres O and A, respectively. The length of BC is:

[SSC CGL 8th Dec 2022 Shift-4 With Answers]
A
B
C
D

EXPLANATION

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