Q.Write a C program to illustrate the switch statement for computing the area of different geometrical figures such as a circle, a square, a triangle, a rectangle, etc. The program should display the menu of figure codes of different figures. On choosing a particular figure code, the corresponding parameters required by that figure are accepted and processed. Finally, the area should be printed. The textbook presents this worked program, transcribed exactly as printed (including its printed errors):

#include<stdio.h>  
void main()  
{  
in fig_code;  
float side, base, length, breadth, height, area, radius;  
printf("--------\n");  
printf("1 Circle\n");  
printf("2 Rectangle\n");  
printf("3 Square\n");  
printf("4 Triangle\n");  
printf("--------\n");  
printf("Enter the figure code\n");  
scanf("%d, &fig_code);  
switch(fig_code)  
{  
    case 1: printf("Enter the radius\n");  
            scanf("%f", &radius);  
            area=3.142*radius*radius;  
            printf("Area of a Circle=%f\n", area);  
            break;  
    case 2: printf("Enter the breadth and length\n");  
            scanf("%f%f", &breadth, &length\n");  
            area=breadth*length;  
            printf("Area of a Rectangle=%f\n", area);  
            break;  
    case 3: printf("Enter the side\n");  
            scanf("%f%, &side\n");  
            area=side*side;  
            printf("Area of a Square=%f\n", area);  
            break;  
    case 4: printf("Enter the base and height\n");  
            scanf("%f%f", &base, &height\n);  
            area=0.5*base*height;  
            printf("Area of a Triangle=%f\n", area);  
            break;  
}  
/*End of switch()*/  
}  
/*End of main()*/  

Sample output printed in the textbook:

Run1                     Run2  
1. Circle                1. Circle  
2. Rectangle             2. Rectangle  
3. Square                3. Square  
4. Triangle              4. Triangle  
Enter the figure code    Enter the figure code  
3                        6  
Enter the side           Error in figure code  
5.0  
Area of a Square=25.000000