Flickr+Assignment

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Geometry Students, Here is the Washington Monument. This famous obelisk is ready to be cleaned. You have been tasked with finding the surface area of the monument. What information will you need in order to calculate the surface area? Find this information and then determine how long it will take to clean the monument if the cleaning crew can cover 10 square feet an hour.

Photo taken by Karl Haase on Oct. 30, 2010 uploaded to //Flickr//, [].