math
posted by maddie on .
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?

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 "