document.write( "Question 1057179: the hour hand of a clock is 3m long. How far does it move in 20 minutes? \n" ); document.write( "
Algebra.Com's Answer #672254 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "20 minutes = 120 degrees on the clock \n" ); document.write( "Radius = 3 metres \n" ); document.write( "Angle/360 = Length of Arc/π x diameter \n" ); document.write( "120/360 = Length of Arc/π x 6 \n" ); document.write( "Length of Arc = (120 x π x 6)/360 \n" ); document.write( "Length of Arc = 6.28 metres. (2 decimal places) \n" ); document.write( "This is the distance the hand moved in 20 minutes. \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |