Python program to calculate Area of a Triangle

In this tutorial we will learn how to calculate area of a triangle. Here we will use Heron’s Formula to calculate area of triangle.

Formula :

Area of a Triangle = √(s*(s-a)*(s-b)*(s-c))

Semi Perimeter(s)

s = (a + b + c)/2

Python program to calculate Area of a Triangle source code :

a = float(input('Enter first side of Triangle: '))
b = float(input('Enter second side of Triangle: '))
c = float(input('Enter third side of Triangle: '))
 
# calculate  semi-perimeter

s = (a + b + c) / 2
 
# calculating  area
# using Heron's Formula

area = (s*(s-a)*(s-b)*(s-c)) ** 0.5

print('Area of triangle is %0.2f' %area)

Output :

Enter first side of Triangle: 5
Enter second side of Triangle: 9
Enter third side of Triangle: 6
Area of triangle is 14.14