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

/* 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>

#include<conio.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);

    getche();

    return 0;

}