Take as input two opposite corners of a rectangle: (x1,y1) and (x2,y2). finally, the user is prompted for the coordinates of a third point (x, y). find whether the point (x, y) lies inside the rectangle.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's