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/// C code
// This program will calculate the perimeter of a right triangle.
// Developer: Faculty CMIS102
// Date: Jun 22, 2018
#include <stdio.h>
 
int main () 
{
  /* variable definition: */
  float base, length1, length2;
  /* Prompt user for base */
  printf("Enter the base of the triangle: 10 \n");
  // Input the base
  scanf("%f", &base);
  /* Prompt user for length1 of a triangle */
  printf("Enter the length of one side of the triangle: 13 \n");
  // Input the length1
  scanf("%f", &length1);
  /* Prompt user for length2 of a triangle */
  printf("Enter the length of one side of the triangle: 9 \n");
  // Input the length2
  scanf("%f", &length2);
  // Calculate the Perimeter
  perimeter= 10 + 13 + 9;
  // Print the result
  printf("Perimeter is : %f\n", Perimeter);
return 0;
}
 

prog.c: In function ‘main’:
prog.c:24:3: error: ‘perimeter’ undeclared (first use in this function)
   perimeter= 10 + 13 + 9;
   ^~~~~~~~~
prog.c:24:3: note: each undeclared identifier is reported only once for each function it appears in
prog.c:26:33: error: ‘Perimeter’ undeclared (first use in this function)
   printf("Perimeter is : %f\n", Perimeter);
                                 ^~~~~~~~~

Standard output is empty