Menu Driven C program to calculate Area of Square, Rectangle

#include<stdio.h>

#include<conio.h>

#include<stdlib.h>

main()

{

int ch;

float s,l,b;

float arect,asquare;

clrscr();

do

{

printf("\t Main Menu\n");

printf("\t 1. Area of Rectangle.\n");

printf("\t 2. Area of Square.\n");

printf("\t 3. Exit\n");

printf("\n\tEnter your choice:\n");

scanf("%d",&ch);

switch(ch)

{

case 1 : printf("\n\tEnter length and bredth:\n");

scanf("%f%f",&l,&b);

arect=l*b;

printf("\n\tArea of rectangle is : %f\n\n",arect);

break;

case 2 : printf("\n\tEnter side of the Square:\n");

scanf("%f",&s);

asquare=s*s;

printf("\n\tArea of Square is : %f\n\n",asquare);

break;

case 3 : exit(0);

}

}

while(ch>=1 && ch<=4);

}