Answer:
136
Step-by-step explanation:
Area of top and bottom added together:
(6) (7) + (6) (7)
42 + 42
84
Area of front and back added together:
(7) (2) + (7) (2)
14 + 14
28
Area of left and right added together:
(2) (6) + (2) (6)
12 + 12
24
Add all underlined numbers:
Area of top and bottom + Area of front and back + Area of left and right
84 + 28 + 24
136
