Find the length BC Very confused, my calculator won’t solve what I thought was the correct equation, so some help is very much required. Thanks!

Scarlett stopped at a campground along the appalachian trail. the campground had a 12 acre area for tents, divided into 6 equal campsites. scarlett picked one of the sections to pitch her tent. which expression would give you the size of scarlett’s campsite? (more than one answer