Joann can run the first 50 meters of the 200-meter race in 6.3 seconds. If she can maintain the same speed for the whole rece, h
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Since the area of a circle is π
, and our radius is 9 we know the total area to be 254.469, and the ratio of sector area to total area is 169.56/254.469 = .6663. There are 360 degrees in a circle, so: 
≈ 240°
240 degrees
240 degrees