document.write( "Question 444699: A sector of the circle has a central angle measuring pi over 4. Find the sector perimeter and the secotr's area. \n" ); document.write( "
Algebra.Com's Answer #306473 by robertb(5830)\"\" \"About 
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What is the radius of the circle?\r
\n" ); document.write( "\n" ); document.write( "With the radius unknown the perimeter of the sector would be P = \"2r+%2B+%28r%2Api%29%2F4+=+%28%28pi+%2B+8%29%2F4%29r\", and the area would be \r
\n" ); document.write( "\n" ); document.write( "\"A+=+%281%2F2%29%28pi%2F4%29r%5E2+=+%28pi%2F8%29r%5E2\"
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