01-31-2011, 12:50 PM
Surface area of rectangular prism less top & bottom =
6 x ( 2.2 + 2.2 + 2.2 + 2.2 ) = 6 x 8.8 = 52.8
Surface area of sphere = 4 x pi x r x r
4 x 3.14 x 1.1 x 1.1 = 15.1976 = 15.2 sq ft
Total surface area = 52.8 + 15.2 = 68 sq ft ANSWER
6 x ( 2.2 + 2.2 + 2.2 + 2.2 ) = 6 x 8.8 = 52.8
Surface area of sphere = 4 x pi x r x r
4 x 3.14 x 1.1 x 1.1 = 15.1976 = 15.2 sq ft
Total surface area = 52.8 + 15.2 = 68 sq ft ANSWER