best illumination of a piece of art, a lighting specialist for an art gallery recommends that a ceiling- mounted light be 3 meter from the piece of art and that the angle of depression of the light be 30c. How far from a wall should the light be placed so that the recommendations of the specialist are met? Notice that the art extends outward 10 cm from the wall. (a) 2.7 m (b) 1.8 m (c) 3.9 m (d) 3.1 m
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question is : best illumination of a piece of art, a lighting specialist for an art gallery recommends that a ceiling- mounted light be 3 meter from the piece of art and that the angle of depression of the light be 30c. How far from a wall should the light be placed so that the recommendations of the specialist are met? Notice that the art extends outward 10 cm from the wall.
the answer is : 2.7 m
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answer will be option b 1.8 m
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