document.write( "Question 175941: The area of a circle is calculated using the following equation:\r
\n" ); document.write( "\n" ); document.write( "A=(pi)r(squared). (I couldn't find the symbols for either pi or squared.)\r
\n" ); document.write( "\n" ); document.write( "Anyhow, the equation needs to be rewritten. If the diameter is half the radius, how can I rewrite the equation, A=(pi)r(squared)?\r
\n" ); document.write( "\n" ); document.write( "Is (pi)d(squared) over 4 the correct answer? If so what is the steps to achieving that answer?\r
\n" ); document.write( "\n" ); document.write( "Note: A stands for the area of a circle, r stands for radius, and d is for diameter.
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Algebra.Com's Answer #131049 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Note: diameter = 2*radius. So \"d=2r\" which means that \"r=d%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"A=pi%2Ar%5E2\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"A=pi%2A%28d%2F2%29%5E2\" Plug in \"r=d%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"A=pi%2A%28d%5E2%2F4%29\" Square \"d%2F2\" to get \"%28d%2F2%29%5E2=%28d%2F2%29%28d%2F2%29=d%5E2%2F4\"
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