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assuming that a person of a normal sight can read print at such a distance that the letters subtend an angle of 5' at his eye,find the height of letter that he can read a distance of 12m |
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Answer» assuming that a person of a normal sight can read print at such a distance that the letters subtend an angle of 5' at his eye,find the height of letter that he can read a distance of 12m |
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