as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
create a function to calculate the area of a triangle using the heron's formula.
user
def calculate_area_heron(a, b, c):
    s = (a + b + c)/2 
    area = (s*(s-a)*(s-b)*(s-c)) ** 0.5 
    return area
assistant