document.write( "Question 979245: Are THE FOLLOWING STATEMENTS, ALWAYS, SOMETIMES OR NEVER TRUE. Please can you give examples\r
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document.write( "If you double the edges the surface area doubles?
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document.write( " If you double the sides of a rectangle the area doubles?
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document.write( "If you double the sides of a rectangle the perimeter doubles?\r
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document.write( "Help would be very much appreciated.
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Algebra.Com's Answer #600775 by Alan3354(69443) You can put this solution on YOUR website! If you double the edges the surface area doubles? \n" ); document.write( "---- \n" ); document.write( "Never. \n" ); document.write( "For a rectangle: \n" ); document.write( "Area = L*W \n" ); document.write( "2L*2W = 4L*W = 4 times the area, not 2 times. \n" ); document.write( "If you mean a solid, eg a cube, it's the same answer. \n" ); document.write( "SA = 6s^2 \n" ); document.write( "6*(2s)^2 = 24s^2 = 4 times the SA. \n" ); document.write( "---------------------- \n" ); document.write( " If you double the sides of a rectangle the area doubles? \n" ); document.write( "Same as above. \n" ); document.write( "---------------------- \n" ); document.write( "If you double the sides of a rectangle the perimeter doubles? \n" ); document.write( "Always. \n" ); document.write( "P = 2*(W + L) \n" ); document.write( "2*(2W + 2L) = 4*(W + L) = 2*p \n" ); document.write( "================================ \n" ); document.write( "Area is in square units, eg, sq cms, sq feet, etc. \n" ); document.write( "The sides are multiplied, so z*sides --> z^2*area. \n" ); document.write( "-------------- \n" ); document.write( "Perimeter is only added, and units are cms, feet etc. \n" ); document.write( "z*sides --> z*perimeter\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |