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The centres of two circles are 36 cm apart. If the radii of these two circles are 15 cm and 9 cm, respectively, then what is the sum of the lengths (i...

SSC SSC CGL Tier 1 Medium Circles MCQ

Question

The centres of two circles are 36 cm apart. If the radii of these two circles are 15 cm and 9 cm, respectively, then what is the sum of the lengths (in cm) of a direct common tangent and a transverse common tangent of these two circles?

Options

A.

6√5(√7 + 2)

B.

6√7(√5 + 2)

C.

6√5(√5 + 2)

D.

6√7(√7 + 2)

circlescommon tangentsgeometrylength calculation

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