document.write( "Question 1173769: The width and the length of a rectangle are both prime numbers. What is its maximum area when its perimeter is 40 cm? \n" ); document.write( "

Algebra.Com's Answer #799076 by ikleyn(52915) $\"\"$ $\"About$

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document.write( "Let p and q be that prime integer numbers that are the length and the width, respectively.\r\n" );
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document.write( "Then you have \r\n" );
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document.write( "    p + q = 40/2 = 20,\r\n" );
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document.write( "and (OBVIOUSLY) you should select these prime numbers p and q as close to their mean value of 10 as possible.\r\n" );
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document.write( "Just the first trial  13 and 7  leads you to the success and to the dimensions  p= 13,  q=  7  centimeters.\r\n" );
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document.write( "ANSWER.  The area of the rectangle is  13*7 = 91 cm^2.\r\n" );
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\n" ); document.write( "\n" ); document.write( "I'd say that everything is simple in this problem, and there is nothing extraordinary interesting . . . \r
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