Write a C program to compute the perimeter and area of a rectangle with a height of 7inches and width of 5 inches.

Perimeter of rectangle: Perimeter of rectangle is given by the below formula  is, Perimeter = 2 * (height + width) 

Approach-1:

• In this approach, we define the complete logic in main() function.
• We read the required values like height and width of rectangle and find the perimeter value using simple formula.

#include <stdio.h>
int main()
{
	float h, w, p;
	printf("Finding perimeter of rectangle\n");
	printf("Enter height : ");
	scanf("%f", &h);
	printf("Enter width : ");
	scanf("%f", &w);
	p = 2*(h + w);
	printf("Perimeter of rectangle is = %f units ", p);
	return 0;
}

Approach-2:

• In this approach we use custom defined function to find the perimeter value of rectangle.
• We read the required input in the main() function and invokes user function perimeter().
• Custom defined function returns the result to calling function after processing the input values.

#include <stdio.h>
float perimeter(float, float);
int main()
{
    float h, w, p;
    printf("Finding perimeter of rectangle\n");
    printf("Enter height : ");
    scanf("%f", &h);
    printf("Enter width : ");
    scanf("%f", &w);
    p = perimeter(h,w);
    printf("Perimeter of rectangle is = %f units ", p);
    return 0;
}
float perimeter(float h, float w)
{
	float p = 2*(h+w);
	return p;
}