Write a C++ program that has two user-defined functions. The main function will

Question

Write a C++ program that has two user-defined functions.
The main function will prompt for all appropriate values as well as output all results.
The program can have one global variable.
The two user-defined functions will both accept one parameter, a radius value. One function will return the area of a circle and the other the parameter of a circle.
All variables are floating-point values. Write a C++ program that has two user-defined functions.
The main function will prompt for all appropriate values as well as output all results.
The program can have one global variable.
The two user-defined functions will both accept one parameter, a radius value. One function will return the area of a circle and the other the parameter of a circle.
All variables are floating-point values. Write a C++ program that has two user-defined functions.
The main function will prompt for all appropriate values as well as output all results.
The program can have one global variable.
The two user-defined functions will both accept one parameter, a radius value. One function will return the area of a circle and the other the parameter of a circle.
All variables are floating-point values.

Explanation / Answer

#include <iostream>

using namespace std;

float result;

float area(float r){

return (3.14 * r *r);

}

float perimeter(float r){

return (2*3.14*r);

}

int main() {

float r;

std::cin >> r;

result=area(r);

std::cout <<"Area of circle is :" << result << std::endl;

result = perimeter(r);

std::cout <<"Perimeter of circle is :" << result << std::endl;

return 0;

}

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