A parcel of land is circular, as shown, with a road running along the straight side. According to the surveyor, the distance from A to B is 8 miles and from P to Q is 16 miles, where PQ ? AB and Q is the midpoint of AB. What is the radius of the circle? How many square miles are in this parcel of land?
r = 8.5 miles; area = 221.58 sq mi
Mathematics
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