SOLUTION: A person standing 40 ft away from a street light that is 25 ft tall. How tall is he if his shadow is 10 ft long?
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Question 1065981: A person standing 40 ft away from a street light that is 25 ft tall. How tall is he if his shadow is 10 ft long? Answer by Boreal(15235) (Show Source):
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The person's height is x
the shadow is 10
The street light is 25; its shadow is 50.
These are similar triangles, the person, shadow being one, the light and its shadow being the other. We aren't worried about the hypotenuses.
The person is half the length of the shadow or 5 feet tall.
