Two bubbles of radii 2mm and 3mm when touch each other, the radius of curvature of their interface is

Two bubbles of radii 2mm and 3mm when touch each other, the radius of

1.	Two bubbles of radii 2mm and 3mm when touch each other, the radius of curvature of their interface is
Answer» `1.7mm` `0.017cm` `6MM` `0.17cm` ANSWER :C