there are 3 adjacent circles with equal radius are touching each other at one point. these circles are enclosed in a big circle such that each circel touches the big one at one point only. if the radius of the bigger circle is 7 cm, then find the radius of the smaller circle?
there are 3 adjacent circles with equal radius are touching each other at one point. these circles are enclosed in a big circle such that each circel touches the big one at one point only. if the radius of the bigger circle is 7 cm, then find the radius of the smaller circle?