I need help with math question Please

Mathematics
Tutor: None Selected Time limit: 1 Day

Feb 18th, 2015

12 feet

because of similar triangle approach

4/6 =x/18

6x =72

x=12

Feb 18th, 2015

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Feb 18th, 2015
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Feb 18th, 2015
Feb 23rd, 2017
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