document.write( "Question 1084628: the altitude of a triangle is increasing at a rate of 1 cm/min
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Algebra.Com's Answer #698709 by Edwin McCravy(20055) $\"\"$ $\"About$

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document.write( ">>the altitude (height h) of a triangle is increasing \r\n" );
document.write( "at a rate of 1 cm/min<< \r\n" );
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document.write( ">>while the area A of the triangle is increasing at a \r\n" );
document.write( "rate of 2cm^2 /min.<< \r\n" );
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document.write( ">>at what rate is the base of the triangle changing...<<\r\n" );
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document.write( "Substitute  and \r\n" );
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document.write( "Multiply both side by 2\r\n" );
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document.write( "We will need b and h to solve for .\r\n" );
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document.write( ">>when the altitude (height h) is 10cm and the area is 100cm^2?<<\r\n" );
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document.write( "We go back to the area formula:\r\n" );
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document.write( "Substitute  and  in\r\n" );
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document.write( "The negative sign means the base is DEcreasing\r\n" );
document.write( "at the rate of -1.6 cm/min at that instant.\r\n" );
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document.write( "Edwin

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