Hello, tmac11522!

A rectangular piece of sheet metal with an area of 1600 in²

is to be bent into a cylindrical length of stovepipe having a volume of 800 in³.

What are the dimensions of the sheet metal? Code:

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The area of this rectangle is: . .[1]

This is the height of the cylinder.

is the circumference of the circular base of the cylinder.

. . .[2]

The volume of the cylinder is 800: .

Substitute [1] and [2]: .

. . from which we get: .

Substitute into [1]: .

Therefore, the dimensions are: . inches.