Problema Solution
500 cylindrical cans,without top lids and each 14cm high with diameter 8cm,are to be made from a sheet of metal.find in m square, the total area that needs to be painted externally.
Answer provided by our tutors
The area that needs painting for one can is: 2*(8/2)*pi*14
The area for 500 cans that needs to be painted externally is: 500*2*(8/2)*pi*14 = 175,929.19 cm^2