Manage Menu Driven Program using switch statement


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C Program

#include<stdio.h>
#include<conio.h>
void main () {
	int ch,r,l,w,b,h;
	float area;
	clrscr();
	printf("enter 1 for area of circle\n");
	printf("enter 2 for area of rectangal\n");
	printf("enter 3 for area of triagle\n");
	printf("enter your choise\n");
	scanf("%d",&ch);
	switch(ch) {
		case 1:
		                 printf("enter radious of circle\n");
		scanf("%d",&r);
		area=3.14*r*r;
		break;
		case 2:
		                  printf("enter lanth and width\n");
		scanf("%d%d",&l,&w);
		area=l*w;
		break;
		case 3:
		                  printf("enter the base and hight\n");
		scanf("%d%d",&b,&h);
		area=.5*b*h;
		break;
	}
	printf("area is=%f",area);
	getch();
}





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