2. An open cardboard box has a square base with edges x cm long and vertical sides y cm long. The box has a volume of 32
Posted: Tue May 10, 2022 7:54 pm
2. An open cardboard box has a square base with edges x cm long and vertical sides y cm long. The box has a volume of 32 cm. (a) Assuming negligible thickness, show that the inner surface area of the box is 128 A= A = {="+" (? (2) х (b) Show that the inner surface area of the box is a minimum when x = = 2y.