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Geometry 13 Online
OpenStudy (firejay5):

12. Packaging: A cylindrical carton of oatmeal with radius 3.5 in. is 9 in. tall. If all surfaces except the top are made of cardboard, how much cardboard is used to make the oatmeal carton? Round your answer to the nearest square inch.

OpenStudy (firejay5):

@Zale101

OpenStudy (zale101):

|dw:1394961792272:dw| Use the lateral area formula of the cylinder to know what's the area covered

OpenStudy (anonymous):

\[2*\pi r*h+\pi r^2\]

OpenStudy (zale101):

Lateral area=2pirh

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