document.write( "Question 674995: Circle A has 1/2 the area of circle b. The radius of circle B is 6 cm. What is the radius of circle A? \n" ); document.write( "
Algebra.Com's Answer #419511 by MathLover1(20849)\"\" \"About 
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Circle A has \"1%2F2\" the area of circle \"B\". The radius of circle B is \"r=6+cm\".\r
\n" ); document.write( "\n" ); document.write( "\"B=r%5E2%2Api\"\r
\n" ); document.write( "\n" ); document.write( "\"B=%286cm%29%5E2%2Api\"\r
\n" ); document.write( "\n" ); document.write( "\"B=36cm%5E2%2Api\"\r
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\n" ); document.write( "\n" ); document.write( "\"A=r%5B1%5D%5E2pi\"\r
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\n" ); document.write( "\n" ); document.write( "\"36cm%5E2%2Api%2F2=r%5B1%5D%5E2pi\"\r
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\n" ); document.write( "\n" ); document.write( "\"36cm%5E2%2F2=r%5B1%5D%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"18cm%5E2=r%5B1%5D%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%2818cm%5E2%29=r%5B1%5D\"\r
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\n" ); document.write( "\n" ); document.write( "\"4.24cm=r%5B1%5D\".........the radius of circle A (exact number 4.2426406871192851464050661726291)\r
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\n" ); document.write( "\n" ); document.write( "\"A=%284.24cm%29%5E2pi\"\r
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\n" ); document.write( "\n" ); document.write( "\"A=18cm%5E2pi\"\r
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