10 is the right answer because if he had 8 appels sitting in the basket those appels have already been picked and him and his sister both picked 5 so 5+5=10
So the actually surface area can be split up by dif parts....meaning 2 side is 2.7*3.2*2 = 17.28 2 side is 3.2*2.1*2 = 13.44 2 sides is 2.1*2.7*2= 11.34
then u add up the areas = 42.06ft^2
then u look for what is the clossest...and that is 42gt^2
