Henry has a wooden chest that has a length of 312 ft, a width of 114 ft and a height of 2 ft. Henry sands the entire outside of the chest with sandpaper. How many square feet of wood does Henry sand?

Question

Doran

Mathematics

8 July, 07:05

Henry has a wooden chest that has a length of 312 ft, a width of 114 ft and a height of 2 ft. Henry sands the entire outside of the chest with sandpaper. How many square feet of wood does Henry sand?

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Answers (1)

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Marlie Brandt · Answer 1

The surface area of a rectangular prism is:

A=2 (xy+xz+yz) where x, y, and z are the dimensions, in this case:

A=2 (312*114+312*2+114*2)

A=2 (35568+624+228)

A=2 (36420)

A=72840 ft^2