In Problems 79-86, A denotes the area of the sector of a circle of radius r formed by the central angle 0. Find the missing quantity. Round answers to three decimal places. 1 79. r = 10 meters, 0 = radian, A = ? 80. r= 6 feet, e = 2 radians, A = ? 1 81. 0 = radian, A = 2 square feet, r= ? 82. 0 = radian, A = 6 square centimeters, r = ? 83. r = 5 miles, A = 3 square miles, 0 = ? 84. r = 6 meters, A = 8 square meters, 0 = ? 85. r = 2 inches, 0 = 30°, A = ? 86. r = 3 meters, 0 = 120°, A = ?

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