**AIM:**

To write a C program to find the area of a triangle given the length of three sides.

**ALGORITHM:**

**Step 1: **Start the program.

**Step 2: **Read the side lengths a, b and c.

**Step 3 : **Calculate area using the formula

area = √s(s-a)(s-b)(s-c)

where s = (a + b + c)/ 2

**Step 4: **Print the area.

**Step 5:** Stop the program.

**PROGRAM CODE:**

#include<stdio.h> #include<conio.h> #include<math.h> void main() { float a,b,c, s, area; clrscr(); printf("nEnter the length of the three sides of the triangle:"); scanf("%f%f%f",&a,&b,&c); s=(a+b+c)/2; area=sqrt(s*(s-a)*(s-b)*(s-c)); printf("nArea of the Triangle :%.3f sq.meters",area); getch(); }

**OUTPUT:**

**RESULT:**

Thus the C program to find the area of a triangle is written and executed successfully.