Python program to find the area of a triangle

This article shows that python program to find a area of triangle.

Mathematical formula to find the area of triangle:

Area of a triangle = (s*(s-x)*(s-y)*(s-z))1/2

Here s is the semi-perimeter and x, y and z are three sides of the triangle.

Semi-Perimeter of a triangle = (x + y + z) / 2

Python Program to do arithmetical calculation.

Example:

    # Three sides of the triangle is x, y and z:  
    x = float(input('Enter first side: '))  
    y = float(input('Enter second side: '))  
    z = float(input('Enter third side: '))  
      
    # calculate the semi-perimeter  
    s = (x + y + z) / 2  
      
    # calculate the area  
    area = (s*(s-x)*(s-y)*(s-z)) ** 0.5  
    print('The area of the triangle is %0.3f' %area)   

Note:

1. Here ** is exponent operator for calculating exponent of any number. This operator works for all positive real numbers. But for negative or complex numbers, it not works.

2. %0.3f floating point specifies at least 0 wide and 3 numbers after decimal. If you use %0.4f then it will give 4 numbers after decimal.

Output:

See this example to clarify the second point of the Note:

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Conclusion:

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