document.write( "Question 1185051: A ladder is 25 cm long leans against a vertical wall so that the base of the ladder
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Algebra.Com's Answer #815775 by ikleyn(52788) $\"\"$ $\"About$

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\n" ); document.write( "A ladder is 25 $\"cross%28cm%29\"$ meters long leans against a vertical wall so that the base of the ladder
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document.write( "In this problem, you have two right angled triangles, both with the hypotenuse of 25 meters, \r\n" );
document.write( "which represents the ladder.\r\n" );
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document.write( "In the first ladder's position, horizontal leg is 7 meters; hence, vertical leg is\r\n" );
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document.write( "     =  = 24 meters long.\r\n" );
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document.write( "When the ladder changes his position, sliding vertically  4 meters down, new vertical leg is 24 - 4 = 20 meters long.\r\n" );
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document.write( "Hence, new horizontal leg is   =  = 15 meters long.\r\n" );
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document.write( "It is the new position of the base of the ladder.\r\n" );
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document.write( "So, we just solved the problem and obtained the ANSWER: the base of the ladder will move by 15 - 7 = 8 meters.\r\n" );
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