document.write( "Question 1175597: The length and the width of the rectangle are in the ratio 5:3. Its area is 375m^2. Find its perimeter. \n" ); document.write( "

Algebra.Com's Answer #801230 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Since the ratio of the sides is 5:3, the sides are 5x and 3x centimeters long, where x is the common factor.\r\n" );
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document.write( "For the area we have  5x*3x = 15x^2 = 375,\r\n" );
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document.write( "so  x^2 =  = 25;  therefore,  x=  = 5.\r\n" );
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document.write( "Thus the sides are  5*5 = 25 cm  and  3*5 = 15 cm long.\r\n" );
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document.write( "The perimeter is 25 + 15 + 25 + 15 = 80 cm.    ANSWER\r\n" );
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