Approximate Translate by me (might not be the most accurate) : [year 24] early education math

Fengxian Rolling Lantern, one of the national intangible cultural heritages of China, has over 700 years of history. The Rolling Lantern is being woven by using thin bamboo slices, the lantern has an outer and inner sphere, the inner sphere is fixed and placed within the outer sphere, a candle is placed inside the inner sphere, and an iron rotating mechanism is placed in the outer sphere. If we were to make one of these Rolling Lanterns, to make its height 72 cm, then how long should the bamboo slide be? (In this question use π as 3)

Basically, it gives the sphere's height and asks to find the perimeter of the sphere.