Question 77497: A rectangular picture window is 5 ft by 8 ft. Polly wants to put a trim molding around the window. How many feet of molding should she buy? Answer by 303795(602) (Show Source):
You can put this solution on YOUR website! The moulding will go around the outside of the window so you need to find the distance around the outside or the perimeter.
Perimeter = 5 + 5 + 8 + 8 = 26 feet.
(In reality she would need a slightly longer length so the moulding would form a neat corner rather than stopping level with the window corner leaving a square( the width of the actual moulding) gap at each corner.)