Through how many radians does the minute hand of a clock turn in 24 minutes?
(1) 0.2π (3) 0.67π
(2) 0.4π (4) 0.8π
MY WORK:
24 minutes/60 minutes = 2/5 = 0.4pi or so I thought.
The correct answer is 0.8pi.
How can this be?
You're on the right track. What you did with the 24 min/ 60 min = 2/5 is good...but we have 2/5 of what? The whole circle. A circle has how many degrees [or radians, in this case] in it? Multiply 2/5 to that and see what you get.
You're on the right track. What you did with the 24 min/ 60 min = 2/5 is good...but we have 2/5 of what? The whole circle. A circle has how many degrees [or radians, in this case] in it? Multiply 2/5 to that and see what you get.
--Chris
Do you mean multiply 2/5 times 360 degress or 2pi?