Mathematics, 19.02.2020 20:07 milkshakegrande101

A camera, which uses a converging lens, takes a picture of a building 100 m away. The 30 m wide building is 3 cm wide on the film. What is the focal length of the lens in the camera?

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A camera, which uses a converging lens, takes a picture of a building 100 m away. The 30 m wide buil...