document.write( "Question 458120: A wire 20m long is attached to the top of a telephone pole. The wire is just able to reach a point on the ground 12m from the base of the telephone pole. Find the height of telephone pole. \n" ); document.write( "
Algebra.Com's Answer #314231 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 20^2=12^2+a^2 \n" ); document.write( "400=144+a^ \n" ); document.write( "256=a^2 \n" ); document.write( "16=a \n" ); document.write( "This is a 4 multiple of classic 3,4,5 right triangle \n" ); document.write( "3*4=12 \n" ); document.write( "4*4=16 \n" ); document.write( "5*4=20 \n" ); document.write( "This hint will be handy on final exams when time is important. \n" ); document.write( " \n" ); document.write( " |