need help writing this program in c++

this is how it should execute.

Lab Write a complete program that: 1. Creates a global constant to hold pi (x = 3.141592) 2. Prompts the user to enter a radius and reads in a radius from the keyboard as a double 3. Calculates the circumference of a circle 4. Calculates the area of a circle. 5. Writes the answers from (3) and (4) out to the display using See the example output for formatting. The equation for circumference of a circle is: circumference = 2 * * radius The equation for area of a circle is: area = r * radius? See the example output for examples and formatting Output values should be fixed with 2 digits of precision. You will need to use to match the output Enter the radius of a circle **10 1 radius circumference area | 10.00 1 62.83 +------------ 314.16 1 ---------+