Make a cylinder, the side area is 9.42 square centimeters, the height is 3 centimeters, its bottom radius is______ Cm, the surface area is______ Square centimeter

Make a cylinder, the side area is 9.42 square centimeters, the height is 3 centimeters, its bottom radius is______ Cm, the surface area is______ Square centimeter

Bottom circumference: 9.42 △ 3 = 3.14 (CM), bottom radius: 3.14 △ 3.14 △ 2 = 0.5 (CM); 3.14 × 0.52 × 2 + 9.42, = 1.57 + 9.42, = 10.99 (cm2); answer: its bottom radius is 0.5 cm, surface area is 10.99 square cm. So the answer is: 0.5; 10.99