Adding assignments

Figures/Rectangle.cs

@@ -0,0 +1,24 @@
+namespace OOP.Figures
+{
+    public class Rectangle : Shape
+    {
+        public Rectangle(double width, double height)
+        {
+            this.height = height;
+            this.width = width;
+        }
+
+        public double height { get; set; }
+        public double width { get; set; }
+
+        public override double GetArea()
+        {
+            return height * width;
+        }
+
+        public override double GetPerimeter()
+        {
+            return (height * 2) + (width * 2);
+        }
+    }
+}