document.write( "Question 944708: A sprinkler can water an area of 121π sq. feet if it rotates 360°. If a gardener sets the sprinkler so that it rotates only 80°, how much fencing is needed to enclose the area that the sprinkler will water?
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Algebra.Com's Answer #576017 by josgarithmetic(39617)\"\" \"About 
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Fence needed for two radii and the arc corresponding to 80 degrees.\r
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\n" ); document.write( "\n" ); document.write( "\"pi%2Ar%5E2=121pi\"
\n" ); document.write( "\"r%5E2=121\"
\n" ); document.write( "\"r=11\"\r
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\n" ); document.write( "\n" ); document.write( "The arc length,
\n" ); document.write( "\"2pi%2A11%288%2F36%29\"
\n" ); document.write( "\"11%2A8%2Api%2F18\"
\n" ); document.write( "\"11%2A4%2Api%2F9\"\r
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\n" ); document.write( "\n" ); document.write( "Total fence needed is \"highlight%282%2A11%2B44pi%2F9%29\".
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