Find what would be the ideal focal length of the lens used

Reference no: EM13518585

A 35 mm camera with interchangeable lenses is used to take a picture of a hawk that has a wing span of 1.8 m. The hawk is 21 m away. What would be the ideal focal length of the lens used so that the image of the wings just fills the width of the film, which is 36mm?

Reference no: EM13518585

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