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An 18-foot pole broke during a storm. The top of the pole touched the ground 12 feet from the base of the pole. How tall is the part of the pole left standing

 Jan 7, 2016
 #1
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4 feet right?

 Jan 7, 2016
 #2
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Let x be the length that broke off.  The part left standing  = 18-x

 

And we have a right triangle.......using the Pytagorean Theorem, we have

 

12^2 + (18 - x)^2  = x^2  simplify

 

144 + x^2 - 36x + 324  = x^2

 

468  = 36x       divide both sides by 36

 

13 = x

 

So.....the part left standing = (18 - x) = (18 - 13) = 5 ft

 

 

 

cool cool cool

 Jan 8, 2016

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