C program to calculate and print area and perimeter of the rectangle

Problem In Hand

C Program to calculate and print area and perimeter of rectangle

Process and Solution Of Problem

Take input for length and width of rectangle and store in variables
calculate and store area of rectangle in variable.
calculate and store perimeter of rectangle in another variable.
further display area and perimeter

Program/Source Code

#include <stdio.h>
 int main()
 {
     int l,b,a,p;
     printf("Enter length and width of rectangle ");
     scanf("%d %d",&l,&b);
     a=l*b;     
     p=2*(l+b);
     printf("Area = %d  perimeter = %d",a,p);
 return 0;
 }

Program Explanation

On execution of the program

* user enteres the length and width of rectangle and store them in a variables “l” and “b”
* Calculation is performed and area is stored in a variable “a” i.e. a=l*b;
* Calculation is performed and perimeter is stored in variable “p” i.e. p=2*(l+b);
* then the result area and perimeter is displayed on the screen

Output:

ex:1
 Enter length and width of rectangle 2
 3
 Area = 6  perimeter = 10
 ex:2
 Enter length and width of rectangle 3
 4
 Area = 12  perimeter = 14

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