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Statement of a problem № 2931

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A boy is 1.50 m tall and can just see his image in a vertical plane mirror 3.0 m away. His eyes are 1.40 m from the floor level. Determine the vertical dimension and elevation of the shortest mirror in which he could see his full image.

Solution:
A boy is 1.50 m tall and can just see his image in a vertical plane mirror 3.0 m

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