The perimeter of a rectangle is the total length of all the sides of the rectangle. Hence, we can find the perimeter by adding all four sides of a rectangle. Perimeter of the given rectangle is l + w + l + w = 2 * (l + w).
/**
* C program to find perimeter of rectangle
*/
#include"stdio.h"
int main()
{
float length, width, perimeter;
/*
* Reads length and width of rectangle from user
*/
printf("Enter length of the rectangle: ");
scanf("%f", &length);
printf("Enter width of the rectangle: ");
scanf("%f", &width);
/* Calculates perimeter of rectangle */
perimeter = 2 * (length + width);
/* Prints perimeter of rectangle */
printf("Perimeter of rectangle = %f units \n", perimeter);
return 0;
}
Enter length of the rectangle: 6
Enter width of the rectangle: 5
Perimeter of rectangle = 22.000000 units
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First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.