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M and N are the centres of two circles with radii 12 cm and 8 cm respectively. QR is the common tangent to the circles. If the distance MN between the...

SSC SSC CGL Tier 1 Medium Circles MCQ

Question

M and N are the centres of two circles with radii 12 cm and 8 cm respectively. QR is the common tangent to the circles. If the distance MN between the centres is 16 cm, find the length of the common tangent QR.

Options

A.

5√17 cm

B.

4√15 cm

C.

3√19 cm

D.

6√8 cm

circlescommon tangentgeometrylength calculationssc 2024

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