# Python Program to Calculate the Area of Triangle In this Python code example, we will discuss a Python program to calculate the area of a triangle. The resulting area will be displayed as output using the print() function in Python.

## Formula for Calculating the Area of Triangle

Let us consider a triangle with three sides represented by variables x,y, and z. To find the area of the triangle, we first need to calculate its semi-parameter, which is represented by s.

Following is the formula for calculating the semi-perimeter of a triangle:

s = (x+y+z)/2

Now, by using the semi-parameter, we can calculate the area of a triangle by using the following formula:

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

## Python Program to Calculate the Area of a Triangle

By using the formulas mentioned in the previous section, we can write a simple Python program that calculates the area of a triangle. Also, we can prompt the user to provide the measures of all the sides of a triangle.

```#Get values of the three sides of the triangle as input from the user
x = int (input("Enter the length of 1st side of Triangle:"))
y = int (input("Enter the length of 2nd side of Triangle:"))
z = int (input("Enter the length of 3rd side of Triangle:"))

# Calculate the semi-parameter of the traingle
s = (x+y+z)/2

#Calculate the area of the Triangle
area = (s*(s-x)*(s-y)*(s-z)) ** 0.5

#Output the area value
print (f"The Area of Triangle is: {area}")```

Output:

```Enter the length of 1st side of Triangle:10
Enter the length of 2nd side of Triangle:10
Enter the length of 3rd side of Triangle:10
The Area of Triangle is: 43.30127018922193

```

## Takeaway

The Python program discussed above calculates the area of a triangle whose sides are provided as input by the user.