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March 28, 2015

March 28, 2015

Posted by **michelle** on Tuesday, May 1, 2007 at 3:04am.

For 30 min. I got 8pie inches. For 20 mins., I got (16pie/3)inches. but i don't know if these answers are correct. if my answers are wrong, please show me the steps to solving this.

Thanks.

Arc distance= radius*angular speed*time

angular speed for a minute hand is 1 rev per hour, or 2PI rad/hr

for 20 min:8in*2PI/hr*1/3 hr

You are correct.

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