anonymous
  • anonymous
Freddie is at chess practice waiting on his opponent's next move. He notices that the 4-inch-long minute hand is rotating around the clock and marking off time like degrees on a unit circle. Part 1: How many radians does the minute hand move from 3:35 to 3:55? (Hint: Find the number of degrees per minute first.) Part 2: How far does the tip of the minute hand travel during that time?
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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anonymous
  • anonymous
@phi @Hero
anonymous
  • anonymous
@Nnesha
anonymous
  • anonymous
@zzr0ck3r

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More answers

anonymous
  • anonymous
@sleepyjess @jigglypuff314 @jim_thompson5910
sleepyjess
  • sleepyjess
First, how many degrees would the hand move in a full minute?
anonymous
  • anonymous
360?
anonymous
  • anonymous
@sleepyjess
sleepyjess
  • sleepyjess
Yes! So if 60 seconds is 360 degrees, how many degrees would 20 seconds be?
anonymous
  • anonymous
120
sleepyjess
  • sleepyjess
Awesome! Do you know how to convert degrees to radians?
anonymous
  • anonymous
one second
anonymous
  • anonymous
2π/3
sleepyjess
  • sleepyjess
Yes!
sleepyjess
  • sleepyjess
That was the first part :) Now for the second part
sleepyjess
  • sleepyjess
Do you know how to find circumference of a circle?
anonymous
  • anonymous
yes , πd
anonymous
  • anonymous
(pi * diameter)
sleepyjess
  • sleepyjess
Yep, we know that the minute hand is 4 inches, so that would be the radius.
anonymous
  • anonymous
so ( pi * 4 )
anonymous
  • anonymous
???
anonymous
  • anonymous
@sleepyjess

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