Example C Program
Length and Breadth of rectangle is input through the keyboard. Write a program in C to display the area and perimeter of rectangle.
/* Program to display area and perimeter of a rectangle [rectangle.c] */
#include < stdio.h >
#include < stdio.h >
void main ( )
{
// Variable Declaration
float len, wid;
float area, peri ;
clrscr ( );
// Input
printf ( “ \n Enter the Length \n “ );
scanf ( “ %f “, &len );
printf ( “ \n Enter the Breadth \n “ );
scanf ( “ %f “, &wid );
// Processing
area = len * wid ;
peri = 2 * ( len + wid );
// Output
printf ( “ \n Area = %f “, area );
printf ( “ \n Perimeter = %f “, peri );
getch ( );
}
Output
Enter the Length10
Enter the Breadth
8
Area = 80
Perimeter = 36