document.write( "Question 1107307: The area of a circle is 28 π cm^2. Find the area of a circle with a radius half the length of the original circle \n" ); document.write( "
Algebra.Com's Answer #722313 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
\"+A+=+pi%2Ar%5E2+\"
\n" ); document.write( "\"+r%5E2+=+A%2Fpi+\"
\n" ); document.write( "\"+r+=+sqrt%28+A%2Fpi+%29+\"
\n" ); document.write( "-------------------------
\n" ); document.write( "You are given \"+A+=+28%2Api+\"
\n" ); document.write( "\"+r+=+sqrt%28+%28+28%2Api+%29+%2F+pi+%29+\"
\n" ); document.write( "\"+r+=+2%2Asqrt%287%29+\"
\n" ); document.write( "------------------------------
\n" ); document.write( "Find \"+A+\" with \"+r%2F2+\" radius
\n" ); document.write( "\"+A+=+pi%2A%28+r%2F2+%29%5E2+\"
\n" ); document.write( "\"+A+=+%28+pi%2F4+%29%2Ar%5E2+\"
\n" ); document.write( "\"+A+=+%28+pi%2F4+%29%2A%28+4%2A7+%29+\"
\n" ); document.write( "\"+A+=+7pi+\"
\n" ); document.write( "--------------------------
\n" ); document.write( "check my math\r
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