First, How many sides does it have?
Second, What do you do to find the area of a surface? (Square or rectangle)
Third, Add up all of the sides.
1: 6
2: multiply the length and width
(I am just doing the sides in a random order)
Top side: 5 x 5 = 25
Left side: 5 x 5 = 25
Right side: 6.4 x 5 = 32
Bottom side: 9 x 5 = 45
Front side: (14 x 5) divided by 2 = 35
Back side: (14 x 5) divided by 2 = 35
3: 25 + 25 + 32 + 45 + 35 + 35 = 197
Answer: 197
Hope this helps :D