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74
M: +2.00/-0.50

There are two circles that touch each other externally. Radius of the first circle with centre O is 12 cm. Radius of the second circle with centre A is 8 cm. Find the length of their common tangent BC.

[SSC CGL 26 July 2023 Shift 1 With Answers]
A
B
C
D

EXPLANATION

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