railway RPF SI Mock Test Series 2024 Quantitative Aptitude Geometry Circles, Chords and Tangents

The length (in cm) of a direct common tangent to two circles of radii 14 cm and 5 cm whose centres are separated by a distance of 40 cm is: 

1
41 cm
2
\(\sqrt{1539}\) cm
3
\(\sqrt{1519}\) cm
4
40 cm
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