SOLUTION: a wheel has a 20-inch diameter.in terms of pi, how far it will roll if it turns 270 degrees?
i tried to solve this by using a simple area of sector formula. and i got an answer 1
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Question 552120: a wheel has a 20-inch diameter.in terms of pi, how far it will roll if it turns 270 degrees?
i tried to solve this by using a simple area of sector formula. and i got an answer 15 pi. but i am worried on my answer since the question is new to me and i used a common formula. was my answer right? i need an explanation or other answers.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a wheel has a 20-inch diameter.in terms of pi, how far it will roll if it turns 270 degrees?
i tried to solve this by using a simple area of sector formula. and i got an answer 15 pi. but i am worried on my answer since the question is new to me and i used a common formula. was my answer right? i need an explanation or other answers.
----------------
Each revolution is 20*pi inches
270 degs is 3/4 of a rev, = 15*pi inches.
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