Answer:
89
Explanation:
cut the figure in half horizontally and it become 2 square and 1 rectangle
square area: 5x5=25
2 square have the same area: 25x2=50
rectangle width=8-5=3
rectangle area: 3x13=39
whole figure area: 50+39=89
rectangle 1:5*8=40
small square:3*3=9
rectangle 2: 5*8=40
add them all and you get 89!
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