Question 763445
The Surface Area in contact with
the water would be:-
2 * 8cm * 16cm = 256cm^2 (long sides)
1 * 16cm * 9cm = 144cm^2  (base)
2 * 8cm  * 9cm = 144cm^2 (short sides)
          TOTAL = 544cm^2.
Hope this helps.
:-)