Updated TriangleCalculator

Author: Arathorn12696

Triangle Calculator/ReadMe.md

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+## Why am I doing this
+I am a software engineering student that just started learning GitHub and want to familiar with the GitHub Contribution Function
+
+## Description
+This is a simple program that calculate the area of the triangle
+
+## How to run
+Open a terminal in the folder where script is located and run the following command:
+
+```sh
+python TriangleCalculator.py
+```
+
+Then input every side of the triangle and it will output the area of the triangle :)
+
+## Author
+Benny Kwan

Triangle Calculator/TriangleCalculator.py

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+s1=float(input('Enter the first side of the triangle: '))
+s2=float(input('Enter the second side of the triangle: '))
+s3=float(input('Enter the third side of the triangle: '))
+
+#Calculate the semi-perimeter
+sp=(s1+s2+s3)/2
+
+#Calculate the area
+area=(sp*(sp-s1)*(sp-s2)*(sp-s3))**0.5
+
+print('The area of the triangle is %0.4f'%area)