document.write( "Question 1045338: Hi there!\r
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document.write( "The angle of elevation from me to the top of a library is 15* (degrees). We know that the library is 50 feet tall.\r
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document.write( "a) How far am I standing from the library?\r
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document.write( "b) How long of a rope would I need to stretch from me to the top of the library? \n" );
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Algebra.Com's Answer #660737 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! | \n" ); document.write( "|50 \n" ); document.write( "|--------------------------15 deg \n" ); document.write( "|=======================You \n" ); document.write( "---------------y-----------------\r \n" ); document.write( "\n" ); document.write( "tan 15=50/y \n" ); document.write( "y=50/tan 15=186.6 feet distant \n" ); document.write( "The rope would be the hypotenuse. One could use the pythagorean theorem, but sin 15=50/x \n" ); document.write( "x=50/sin 15=193.2 feet \n" ); document.write( "check: 50^2+186.6^2=2500+34819.56=37319.56 \n" ); document.write( "sqrt (37319.56)=193.2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |