Question

A blanket is being wrapped for a gift. A cylindrical tube is being used but needs to be gift wrapped. The tube is 24.5 inches tall and has a radius of 7 inches. Approximately how much wrapping is needed to wrap the tube?
1385 in2

1166 in2

4079 in2

1232 in2

Answer 1

Answer:
1385$in^{2}$

Solution:
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What we know: 
"The tube is 24.5 inches tall and has a radius of 7 inches".
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We are going to be using the surface are formula to solve this problem: 
$A= 2\pi r^{2} + 2\pi r h$
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We will then input the numbers in our formula:
A= 2\pi 7^{2} + 2\pi (7) (24.5) = 1385.44 
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We would need to round to the nearest whole number: 
1385

Hence, our answer would be 1385.