Solution steps: 1. Find the square area.
S positive =axa
30x30=900(cm？ )
2. Find the side area of the cylinder
C circle =πd
3. 14x 16=50.24 (cm)
S=c circle xh
50.24x 10=502.4(cm？ )
3.Sum 10 hat.
900+502.4= 1402.4(cm？ )
1402.4 x 10 = 14024(cm？ )= 140.24(dm？ )
The question in our book is how many square decimeters there are, but you asked for cubic centimeters. I don't know if your topic is wrong or something. Cubic centimeters and square centimeters cannot be converted. (And there are 20 in my book, not 10) = =
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