This PPT features a well explained theory / concepts / derivations of the formula of Surface Area of various 3D shapes : like cube, cuboid and cylinder with the help of expanded 3D shapes (called "nets"). NOTE: # THIS IS PDF FILE SO IF YOU WANT TO DOWNLOAD THE PPT FILE THEN DOWNLOAD IT FROM THE DROPBOX LINK AS GIVEN: https://www.dropbox.com/s/mud0yx2tfoscx2y/Surface%20Area%20PPT.pptx # FOR BETTER EXPERIENCE VIEW THE PPT AFTER DOWNLOADING IN PPT SLIDESHOW........:-)