document.write( "Question 453402: if a running trail is a circle. the diameter of the trail is 1 mile. about how many times would you need to run around the trail to run a total distance of 10 miles? \n" ); document.write( "
Algebra.Com's Answer #311525 by rwm(914)\"\" \"About 
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what is the circumference of a circle with diameter 1
\n" ); document.write( "2*pi*r=C
\n" ); document.write( "2r=d
\n" ); document.write( "pi is the circumference
\n" ); document.write( "10/pi is the number of times
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