Write a program that calculates circumference and area, C/C++ Programming

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Write a program called A1Q3, that reads it the radius of a circle as an integer and prints the circle's diameter, circumference and area. Use a constant value for pi. Do all calculations in the output statements. The output should be in a table format using a tab escape code to align columns. What happens when the user enters a radius as a real number?

Here is a sample run:

What is the radius: 4

Diameter: 12.5664

Circumference: 25.1327

Area: 50.2654

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