Question

Write a method called trianglearea that accepts the three side lengths of a triangle as parameters and returns the area of a triangle with those side lengths. for example, the call trianglearea (8, 5.2, 7.1) should return 18.151176098258745.

Answer 1

Example method:
double trianglearea(double a, double b, double c){
double s=a+b+c;
return Math.sqrt(s*(s-a)*(s-b)*(s-c));
}