Two circles of radii 8 cm and 6 cm touch each other externally. The length of the direct common tangent is:

13.86 20 10.12 24

13.86

Length of direct common tangent  = \(\sqrt {d² - ( R - r )² }\) = \(\sqrt {14² - ( 8 - 6 )² }\) = \(\sqrt {196 - 4 }\) = \(\sqrt {192 }\) = 13.86 cm