tegaoks8228 tegaoks8228

09-05-2021
Mathematics

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At a certain time of day a person 6 ft casts a 4ft shadow. How long is the shadow cast by a 21ft tree at the same time?

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BasimaElaskri BasimaElaskri

09-05-2021

Answer:

Designate the unknown shadow length by s. Shadows cast at the same time and place are proportional to the height of the object casing the shadow. Therefore:

4/6 = s/21, or s = [4(21)]/6 = 14 feet.

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