**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

7. Write a c program to find the area of rhombus.

8. Write a c program to find the area of parallelogram.