White a C$++$ program to compute the area for a red circle and a blue circle

Demonstrate the following items in your C$++$ program:

The value of $=3\mathrm{.}14$ is declared as a global variable. Prompt the user to enter the radius for each circle. Compute the area answers for each circle.

$.$

$[14$ marks$]$

Compare the computed area answers for red circle and blue circle using $1$ type of the arithmetic operator and $1$ type of relational operator.

Output statements for each of the above items are shown.