c code help

[thenino]

please help me to solve it

/* ### The following variable defines the constant PI ### */
const float PI = 3.14;

float CirclePerimeter(float radius)
{
    /* ### Write your code below this line ### */

    return /* ... */;
}

 

[Johna]

Without any info given on what you need help solving, I can't know for sure, but based on the function name CirclePerimeter, I'm guessing they're asking you to find the perimeter (circumference) of a circle with the radius passed as a parameter.

To find the circumference of a circle, you use the equation 2πr.
It should be something like this in your function:

const float PI = 3.14;

float CirclePerimeter(float radius)
{
    return 2 * PI * radius;
}