8.) LA= 10 pi or approximately 31.4 inches squared
9.) SA= 18 pi or approximately 56.5 inches squared
10.) LA= 2/8 pi or approximately 0.79 inches squared
11.) SA= 3/8 pi or approximately 1.18 inches squared
12.) 527.8 square inches of paper would be needed for a dozen water bottles.
We have the same workbook :)