cube

• The surface area is the total area of the outside part or layer of a 3D figure
• Finding the surface area of a cube


  1. Find the area of one face

  2. Multiply the area of one face by 6 (since a cube has 6 faces)
• Formula for surface area of a cube

  Surface area = 6 x (side length)^2
• Steps to find surface area of example cube


  1. Find area of one face (3 ft x 3 ft = 9 sq ft)

  2. Multiply area of one face by 6 (9 sq ft x 6 = 54 sq ft)
• Using the formula gives the same result (6 x (3 ft)^2 = 54 sq ft)
• A net is when you unfold a 3D figure to better visualize it