document.write( "Question 848465: The sum of the base and height of a rectangle is 69 cm. Find the dimensions for which the area is maximum \n" ); document.write( "
Algebra.Com's Answer #511105 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi,
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document.write( "The sum of the base and height of a rectangle is 69 cm. 
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document.write( "Find the dimensions for which the area is maximum (When it is a Square)
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document.write( " b + h = 69cm
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document.write( " b = h = 69cm/2 = 34.5cm
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document.write( "the dimensions  34.5cm  by 34.5cm
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document.write( "Note:
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document.write( " A= b(69-b)
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document.write( "A =  -b^2 + 69  |Completing Square to find Maximum Point
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document.write( "\"A+=+-%28b+-+%2869%2F2%29%29%5E2+%2B+%2869%2F2%29%5E2\"
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document.write( "      b = 69/2 when A is maxed and h = 69/2  (rectangle a square) \n" );
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