A pole casts a shadow 20 feet long . Anothe pole 3 feet high cast a shadow 5 feet long. If the heights and shadows are in proportion, how high is the first pole?

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asked May 9, 2018 163k views

5 votes

A pole casts a shadow 20 feet long . Anothe pole 3 feet high cast a shadow 5 feet long. If the heights and shadows are in proportion, how high is the first pole?

Mathematics
middle-school

Constantin Chirila asked

by Constantin Chirila

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2 Answers

2 votes

Would be 33.3 because 5/3 is 1.6666667 and 20*1.6666667 is 33.3!
(psst, there is more 3's after the 33.3)

Atsumi answered May 12, 2018

by Atsumi

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3 votes

the first pole is 12 feet long

Steven Siew answered May 14, 2018

by Steven Siew

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