Question

12. Write a C function

void rect(int *ar, int *per, int len, int wid)

that computes the area ar and perimeter per of a rectangle with length len and width wid. Test it with a main program that inputs the length and width of a rectangle and outputs its area and perimeter. Output the value in the main program, not in the procedure.

Sample Input

6   10

Sample Output

Length: 6
Width: 10
Area: 60
Perimeter: 32

Answer 1

#include <stdio.h>

void rect(int *ar, int *per, int len, int wid){
    *ar = len*wid;
    *per = 2*(len+wid);
}

int main()
{
   int ar, per, len, wid;
   scanf("%d",&len);
   scanf("%d",&wid);
   rect(&ar,&per,len,wid);
   
   printf("Length: %d\n",len);
   printf("Width: %d\n",wid);
   printf("Area: %d\n",ar);
   printf("Perimeter: %d\n",per);
    return 0;
}