What is the surface area of a cube with side length 2 cm?

• A. 24 cm²
• B. 12 cm²
• C. 16 cm²
• D. 20 cm²

Answer: (A)

To find the surface area of a cube, you use the formula:

[ \text{Surface Area} = 6s^2 ]

where ( s ) is the length of a side of the cube. In this case, the side length is 2 cm.

First, calculate ( s^2 ):

[ s^2 = 2^2 = 4 , \text{cm}^2 ]

Next, plug this value into the surface area formula:

[ \text{Surface Area} = 6 \times 4 , \text{cm}^2 = 24 , \text{cm}^2 ]

Thus, the surface area of the cube is 24 cm². This aligns with the correct answer, which states that the surface area is 24 cm². The other options reflect miscalculations or misunderstandings of how to apply the formula for surface area, confirming that only the calculation of 6 times the square of the side length yields the correct result.