Question: 2. Complete a program to calculate the surface area of a circle. The program must ask the user to provide the information of the radius

2. Complete a program to calculate the surface area of a circle. The program must ask the user to provide the information of the radius of a circle from keyboard input. It then takes the value to calculate the surface area, and prints out the results on the screen. (Note: you should define a constant to store PI=3.141593.) The running result is as below: (4 marks) Please input the radius of a circle: 10 the value of the surface area: 314,16

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