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Find the area of the sector of a circle of radius r and central angle 3. (Round your answer to two decimal places.) Radius r Central Angle 9 4.5 feet 315 :3 Find the distance between the cities. Assume that Earth is a sphere of radius 4000 miles and that the cities are on the same longitude (one city is due north of the other). (Use the formula for arc length. Round your answer to the nearest mile.) City Latitude Dallas, Texas 320 47' 9" N Omaha, Nebraska 41" 15' 50" N miA sprinkler on a golf green is set to spray water over a distance of 20 meters and to rotate through an angle of 150. Draw a diagram 10 O 20 20 O 10 Find the area of the region. (Round your answer to two decimal places.) 2 m