C. 1293. Alpha & Co. manufacture tennis balls and sell them in packets of four, arranged in a pyramid in a regular tetrahedral box (figure 1). Another manufacturer, APHLA, also sells tennis balls in four-packets, arranged in a column in a tall cylindrical box closed at both ends (figure 2). What is the difference between the surface areas of the two boxes if the diameter of a tennis ball is 6.50 cm?
This problem is for grade 11 - 12 students only.
Deadline expired on 11 May 2015.