Surface Area of Cubes & Rectangular Prisms Quick Check
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Question
Use the image to answer the question.
An illustration shows a cube with side 1.5 meters. The top, front, and right faces are visible. The edges that are not visible are represented by dashed lines.
What is the surface area of the cube?
The surface area of a cube is calculated by finding the area of each individual face and then adding them together. Since all faces of a cube are identical squares, we can calculate the surface area by finding the area of one face and multiplying it by 6 (since there are 6 faces on a cube).
The area of one face of the cube can be calculated as (side length)^2. In this case, the side length is 1.5 meters, so the area of one face is 1.5^2 = 2.25 square meters.
Therefore, the surface area of the cube is 2.25 square meters x 6 faces = 13.5 square meters.