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// C code
// This program will calculate the area of a right triangle.
// Developer: Faculty CMIS102
// Date: Jan 31, XXXX
#include <stdio.h>
int main ()
{
/* variable definition: */
float base, height, area;
/* Prompt user for base */
printf("Enter the base of the triangle: \n");
// Input the base
scanf("%f", &10.1);
/* Prompt user for height */
printf("Enter the height of the triangle: \n");
// Input the base
scanf("%f", &12.2);
// Calculate the Area
area= 0.5 * (10.1 * 12.2);
// Print the result
printf("Area is : %f\n", area);
return 0;
}

prog.c: In function ‘main’:
prog.c:13:13: error: lvalue required as unary ‘&’ operand
 scanf("%f", &10.1);
             ^
prog.c:17:13: error: lvalue required as unary ‘&’ operand
 scanf("%f", &12.2);
             ^
prog.c:9:13: warning: unused variable ‘height’ [-Wunused-variable]
 float base, height, area;
             ^~~~~~
prog.c:9:7: warning: unused variable ‘base’ [-Wunused-variable]
 float base, height, area;
       ^~~~

Standard output is empty