C Program to find perimeter of rectangle

Program

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

Output

Enter the width of rectangle:
21
Enter the height of rectangle:
13
Perimeter of rectangle is 68.000000