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Question: In a museum devoted to the history of photography, you are setting up a projection system to view some historical 4.0 inch x 5.0 inch slides. Your screen is 6.0m from the projector lens, and you want the image to be 4.0 ft x 5.0 ft on the screen.

Part I: What focal length lens do you need?

Part II: How far from the lens should you put the slide?

Please show work I think I have the answer just not positive.

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