The body

The body on the figure consists of cubes with an edge length 10 cm. What surface has this body?

Correct result:

S =  8800 cm2


a=10 cm S1=a2=102=100 cm2  x=2 8+3 3+4=29 y=2 4+2 5+2 4+2 15+3=59  S=S1 (x+y)=100 (29+59)=8800 cm2

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