Experiments-1

1. Write a program to calculate the area & perimeter of the rectangle and the area & circumference of the circle. The length and breadth of a rectangle and radius of a circle are input through keyboard.

/* This program takes length and breadth of rectangle and radius of a circle from

user as input then finds area and perimeter of the rectangle and the circumference of t

he circle, then shows results.*/

#include<stdio.h>

int main()

{

    /*Declaring and initializing variables*/

    float lengthrect = 0, breadthrect =0, radius =0, area =0, perimeter =0, circumference =0 ;

   

    /*Taking input from user*/

    printf("Please enter the length of Rectangle: ");

    scanf("%f",&lengthrect);

    printf("\nNow enter the breadth of Rectangle: ");

    scanf("%f",&breadthrect);

    printf("\nNow enter the radius of circle: ");

    scanf("%f",&radius);

   

    /*Calculations*/

    area = lengthrect * breadthrect;

    perimeter = 2 * (breadthrect + lengthrect);

    circumference = 2 * 3.1416 * radius;

   

    /*showing results*/

    printf("\n\nResults: \n");

    printf("__________");

    printf("\nArea of the Rectangle: %f units\n",area);

    printf("\nPerimeter of the Rectangle: %f units\n",perimeter);

    printf("\nCircumference of the circle: %f units \n",circumference);

    return 0;

}

OUTPUT :
__________

Please enter the length of Rectangle: 6.6                                                                                                                                       

Now enter the breadth of Rectangle: 4.5                                                                                                                                         

Now enter the radius of circle: 3.9                                                                                                                                             

                                                                                                                                                                                

                                                                                                                                                                                

Results:                                                                                                                                                                        

__________                                                                                                                                                                      

Area of the Rectangle: 29.699999 units                                                                                                                                         

Perimeter of the Rectangle: 22.200001 units    

Circumference of the circle: 24.504480 units