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A tube of tennis balls has the following measures: 4-inch diameter and a height of 8 inches. What is the surface area of the tube of tennis balls? (Use 3.14 for π.)
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A tube of tennis balls has the following measures: 4-inch diameter and a height of 8 inches. What is the surface area of the tube of tennis balls? (Use 3.14 for π.)

User Xax
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Surface area = 4pir^2. So, the expression would be 4*3.14*2. So, the surface area is 50.265 in^2.
User Yosep Tito
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