Homework Help: algebra

Posted by lisa on Thursday, December 1, 2011 at 12:33am.

Guy wire. How long is a guy wire reaching from the top of a 24ft ploe to a point on the ground 16 feet from the pole
What is the exact length?
what is the lenght approximated to three decimal palces?

algebra - Steve, Thursday, December 1, 2011 at 5:33am
draw your triangle

the legs are 16 and 24
or, 4*4 & 4*6

so, the hypotenuse (guy wire) is 4*sqrt(16+36) = 4*sqrt(52) = 8*sqrt(13)

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