Asked by anonymus

If a person standing 5 feet tall casts a shadow 12 feet long, then how long is a tree's shadow if a tree stands 17.5 feet tall?

Answers

Answered by jerome
x=shadow length
12/x=5/12
5/12=0.417
12/x=0.417
12/0.416=28.8ft
check:12/28.8=0.417

28.8ft
Answered by Steve
the ratio of shadow/height is constant, so

12/5 = x/17.5

or, the height and shadow scale the same way, so since 17.5 is 3.5 times 5, the shadow will be 3.5 times 12 feet long.
Answered by jerome
got me numbers mixed up, sorry
Answered by jerome
replace 12 with 17.5
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