Question

Write a c program to calculate the area of a triangle using three sides.

Answer 1

Code: 

#include <stdio.h>

#include <math.h>

int main() {

    // Declare variables to store user input

    double a, b, c;

    printf("Enter the length of side a: ");

    scanf("%lf", &a);

    printf("Enter the length of side b: ");

    scanf("%lf", &b);

    printf("Enter the length of side c: ");

    scanf("%lf", &c);

    double s = (a + b + c) / 2;

    double area = sqrt(s * (s - a) * (s - b) * (s - c));

    printf("Area of the triangle: %lf\n", area);

    return 0;

}