C Program to Calculate Area of Scalene Triangle

C Programming Language Fundamentals of C Language (Article) Fundamentals of C Language (Program)

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Program:

#include"stdio.h"
#include"math.h"
 
int main() {
   int s1, s2, angle;
   float area;
   float M_PI=3.14;
 
   printf("\nEnter Side1 : ");
   scanf("%d", &s1);
 
   printf("\nEnter Side2 : ");
   scanf("%d", &s2);
 
   printf("\nEnter included angle : ");
   scanf("%d", &angle);
 
   area = (s1 * s2 * sin((M_PI / 180) * angle)) / 2;
 
   printf("\nArea of Scalene Triangle : %f \n", area);
   return (0);
}

Output:

Enter Side1 : 3

Enter Side2 : 4

Enter included angle : 30

Area of Scalene Triangle : 2.998621
Press any key to continue . . .

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