document.write( "Question 336371: What is the area and the circumference of the circle with a 28yd diameter? \n" ); document.write( "
Algebra.Com's Answer #241124 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
If the diameter is \"d=28\", then the radius is \"r=d%2F2=28%2F2=14\" yards. So \"r=14\"\r
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\n" ); document.write( "\n" ); document.write( "Area:\r
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\n" ); document.write( "\n" ); document.write( "\"A=pi%2Ar%5E2\" Start with the area of a circle formula.\r
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\n" ); document.write( "\n" ); document.write( "\"A=pi%2A%2814%29%5E2\" Plug in \"r=14\".\r
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\n" ); document.write( "\n" ); document.write( "\"A=%283.14159%29%2A%2814%29%5E2\" Replace \"pi\" with \"3.14159\" (note: Use more digits of \"pi\" to get better accuracy).\r
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\n" ); document.write( "\n" ); document.write( "\"A=%283.14159%29%2A%28196%29\" Square \"14\" to get \"196\".\r
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\n" ); document.write( "\n" ); document.write( "\"A=615.75164\" Multilpy \"3.14159\" and \"196\" to get \"615.75164\" (this figure is approximate).\r
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\n" ); document.write( "\n" ); document.write( "\"A=615.752\" Round to the nearest thousandth.\r
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\n" ); document.write( "\n" ); document.write( "So the area of the circle is roughly 615.752 square yards.\r
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\n" ); document.write( "\n" ); document.write( "Circumference:\r
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\n" ); document.write( "\n" ); document.write( "\"C=2pi%2Ar\" Start with the circumference of a circle formula.\r
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\n" ); document.write( "\n" ); document.write( "\"C=2pi%2A%2814%29\" Plug in \"r=14\".\r
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\n" ); document.write( "\n" ); document.write( "\"C=2%283.14159%29%2A%2814%29\" Replace \"pi\" with \"3.14159\" (note: Use more digits of \"pi\" to get better accuracy).\r
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\n" ); document.write( "\n" ); document.write( "\"C=6.28318%2A%2814%29\" Multiply 2 and \"3.14159\" to get \"6.28318\".\r
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\n" ); document.write( "\n" ); document.write( "\"C=87.96452\" Multiply \"6.28318\" and \"14\" to get \"87.96452\".\r
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\n" ); document.write( "\n" ); document.write( "So the circumference of a circle with a radius of \"14\" yards is about \"87.96452\" yards.\r
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\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Also, feel free to check out my website. \r
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