Circle chains inscribed in symmetrical lenses and integer sequences - Giovanni Lucca We derive the conditions for inscribing, inside a symmetrical lens, a chain of tangent circles having the property that the ratio between the largest circle radius and the radius of any other circle of the chain is an integer. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education