document.write( "Question 52251This question is from textbook
\n" ); document.write( ": I need some help on this problem. I have tried and tried to figure it out. Here's the question. A telephone pole is 45 ft. tall. A guy wire is attached to the top of the pole and makes a 45 degrees angle with the ground. What is the length of the guy wire? \n" ); document.write( "
Algebra.Com's Answer #34831 by funmath(2933)\"\" \"About 
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The telephone pole make a right angle with the ground so we can use right triangle trigonometry. This can be done a few ways:\r
\n" ); document.write( "\n" ); document.write( "We make use of the fact that sin(angle)=opposite/hypotenuse.
\n" ); document.write( "Let x be the guide wire and we have:
\n" ); document.write( "sin(45)=45ft/x
\n" ); document.write( "xsin(45)=x45ft/x
\n" ); document.write( "xsin(45)=45ft
\n" ); document.write( "xsin(45)/(sin(45))=45ft/(sin(45)) (Use calculator or sqrt(2)/2)
\n" ); document.write( "x=45ft/(.7071)
\n" ); document.write( "x=63.64ft\r
\n" ); document.write( "\n" ); document.write( "If you are required to use the pythagorean theorem only, both legs are equal for 45 degree angles and the Pythagorean Theorem states hypotenuse^2=leg^2+leg^2
\n" ); document.write( "x^2=45^2+45^2
\n" ); document.write( "x^2=2025+2025
\n" ); document.write( "x^2=4050
\n" ); document.write( "sqrt(x^2)=sqrt(4050)
\n" ); document.write( "x=63.64 ft
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