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On a sunny day, a person who is 5 feet tall casts a 3 feet long shadow. Find the height of a nearby flagpole which casts a 12 feet long shadow.


  1. 10 feet

  2. 25 feet

  3. 15 feet

  4. 20 feet


Solution

The correct option is D

20 feet


We can see that ,  ABCDEF by AAA Similarity Criterion

ABDE=BCEF

AB5=123

Thus, AB = 20 feet

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