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