Merge pull request #1540 from cyai/cyai-patch-7

Refactor: Clean code

Author: geekcomputers

Areaoftriangle renamed to AreaOfTriangle.py

@@ -14,4 +14,4 @@
 
 # calculate the area
 area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
-print('The area of the triangle is %0.2f' %area)
+print('The area of the triangle is: ' + area)