medium · SAT Math
A track encloses a region shaped like a rectangle with two semicircles attached, one on each of the two shorter sides. The rectangle is 100 meters long and 40 meters wide, and each semicircle has the 40-meter side as its diameter.
What is the total area enclosed by the track, in square meters, in terms of π?
- 4000+200π
- 4000+400π
- 4000+800π
- 4000+1600π
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