## INDEX

### Write a c program to find the area of a triangle

C program for area of a triangle

Formula of area of any triangle:

Area = √(s*(s-a)*(s-b)*(s-c))
Where s = (a + b + c)/2

C code:

#include<stdio.h>
#include<math.h>

int main(){

float a,b,c;
float s,area;

printf("Enter size of each sides of triangle");
scanf("%f%f%f",&a,&b,&c);

s = (a+b+c)/2;
area = sqrt(s*(s-a)*(s-b)*(s-c));

printf("Area of triangle is: %.3f",area);

return 0;
}

Sample output:

Enter size of each sides of the triangle: 2 4 5
Area of triangle is: 3.800

1. this answer is wonderful really i like you

2. when i put 2 4 6 shows wrong answer
i.e., when s= even

3. thats not a valid tringle.....for a valid tringle {if(a+b>c && b+c>a && c+a>b)}

4. I missed a thing i.e your a(2)+b(4)is not greater then c(6)

5. Who made this program in this website thank you very much. May god give you power and arrange to you all the situation to help the other like this.

6. Thanx for the help

7. Thanks for the help...but what if write float a,b,c,s,area; instead of
float a,b,c;
float s,area;

8. Write a C program to print the following triangle:

9. thnks man this makes programing c easy

10. why you write in last printf 3f

12. this is my mail.. please heeeeeelp me. leylakalhor@rocketmail.com

13. This comment has been removed by the author.

14. Why you write %.3f

1. three digits after decimal point.
Example : 3.800

If it was %.5f
It would have been - 3.80000

15. This comment has been removed by the author.