diff --git a/week6.py b/week6.py
new file mode 100644
index 0000000..54d755e
--- /dev/null
+++ b/week6.py
@@ -0,0 +1,68 @@
+class Triangle:
+    def __init__(self,a,b,c):
+        self.a=a
+        self.b=b
+        self.c=c
+        Perimeter = a + b + c
+        s = (a + b + c) / 2
+        Area = (s * (s - a) * (s - b) * (s - c)) ** 0.5
+
+        print("\n The Perimeter of Traiangle = %.2f" % Perimeter);
+        print(" The Area of a Triangle is %0.2f" % Area)
+
+
+
+
+class Rectangle:
+    def __init__(self,s,height ):
+
+        self.width=s
+        self.height=height
+        Area2 = s * height
+        Perimeter = 2 * (s + height)
+
+        print("\n Area of a Rectangle is: %.2f" % Area2)
+        print(" Perimeter of Rectangle is: %.2f" % Perimeter)
+
+        super().__init__()
+
+
+class Square(Rectangle):
+      def __init__(self,s):
+        super().__init__(s,s)
+
+        area = s * s
+        perimeter = 4 * s
+
+        print("Area of Square : ", area)
+        print("Perimeter of Square : ", perimeter)
+
+
+
+
+class Cube(Square):
+    def __init__(self,s):
+        super().__init__(s)
+
+        sa = 6 * (s * s)
+        Volume = s * s * s
+        LSA = 4 * (s * s)
+
+        print("\n Surface Area of Cube = %.2f" % sa)
+        print(" Volume of cube = %.2f" % Volume)
+        print(" Lateral Surface Area of Cube = %.2f" % LSA)
+
+class Pyramid(Triangle, Square):
+    def __init__(self,b,c):
+        super().__init__(b,b,c)
+        volume = (0.33) * b * b * c
+        area=2 * b * c + pow(b, 2)
+        print(" Volume of pyramid = %.2f" % volume)
+        print(" Area of pyramid = %.2f" % area)
+
+
+"""print(Triangle(5,6,7))"""
+"""print(Rectangle(6,7))"""
+"""print(Square())"""
+print(Cube(5))
+print(Pyramid(6,4))