math
posted by maddie
mae has a oval racetrack. 2 curves, each is 1/2 of the circle and each on a radius of 21". 2 straightaways connect the circle and are 46" long. what is the total distance around the circle?

Reiny
Did you mean,
What is the distance around the track?
distance around the circle = 2π(21) = 42π or appr. 131.95 "
so around the track :
we would simply add 2(46) to that to get
223.95 "
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