Given the length (l) = 4 units, the width (w) = 3 units and the height (h) = 20 units:

What is the area of the top?  units^{2}  
What is the area of the bottom?  units^{2} 
What is the area of the front?  units^{2} 
What is the area of the back?  units^{2} 
What is the area of the right?  units^{2} 
What is the area of the left?  units^{2} 
What is the lateral area?  units^{2} 
What is the total area?  units^{2} 
 