document.write( "Question 460914: Find the arc length of the minor arc with a given 150 degree interior angle and a circumfrence of 31.4
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Algebra.Com's Answer #316218 by Gogonati(855)\"\" \"About 
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First we find the radius of the circle with circumference \"31.4=10%2Api\":\r
\n" ); document.write( "\n" ); document.write( "\"r=%2831.4%29%2F%282%2Api%29=10%2Api%2F%282%2Api%29=5\" radian. As we know the length of the arc is \r
\n" ); document.write( "\n" ); document.write( "given by the formula:\"l=r%2Atheta\", where \"theta+\" is the angle 150 degree\r
\n" ); document.write( "\n" ); document.write( "or \"5%2Api%2F6\" radian. Substituting we get:\"l=5%2A5%2Api%2F6=25%2Api%2F6\" radian.
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