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A building 30 feet tall casts a shadow 20 feet long. A person 6 feet tall is walking directly away from the building toward the edge of the building shadow. How far from the building will the person be when the person shadow just begins to emerge from that of the building

 Jan 19, 2020
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Find out how tall the shadow WOULD be for the person

 

30 ft tall is to 20 ft long as 6 ft tall is to x long

30/20  = 6/x

x = 4 ft sahdow

 

Now find out how far from the edge of the shadow before person's shadow begins to emerge

 

30 -4 = 26 feet from building

 Jan 19, 2020
edited by ElectricPavlov  Jan 19, 2020

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