#include <stdio.h>
#include <stdlib.h>
void main(void) {
int choice , l ,w ,b,h ,r ;
float area ;
printf("Input 1 for area of circle \n");
printf("Input 2 for area of rectangle \n");
printf("Input 3 for area of triangle \n");
printf("Input Your choice:");
scanf("%d",&choice);
switch(choice){
case 1 :
printf("enter the radius of circle :");
scanf("%d",&r);
area = 3.14*r*r ;
break;
case 2:
printf("enter the length of rectangle :");
scanf("%d",&l);
printf("\nenter the width of rectangle :");
scanf("%d",&w);
area = l * w ;
break;
case 3:
printf("enter the height of triangle :");
scanf("%d",&h);
printf("\nenter the base of triangle :");
scanf("%d",&w);
area = .5 * b * h;
break;
default :
printf("Wrong Input ! please select the correct input");
}
printf("\nYour area %f",area);
}
