Question
If the cube has a side length of 9 centimeters, what is the surface area of the cube?
A.
81 cm2
B.
54 cm2
C.
324 cm2
D.
486 cm 2
Answers
GPT-4o mini
The surface area \( S \) of a cube can be calculated using the formula:
\[
S = 6s^2
\]
where \( s \) is the length of a side of the cube.
Given that the side length of the cube is \( 9 \) centimeters, we can substitute this value into the formula:
\[
S = 6 \times (9 \, \text{cm})^2
\]
\[
S = 6 \times 81 \, \text{cm}^2
\]
\[
S = 486 \, \text{cm}^2
\]
Therefore, the surface area of the cube is \( 486 \, \text{cm}^2 \).
The correct answer is **D. 486 cm²**.
\[
S = 6s^2
\]
where \( s \) is the length of a side of the cube.
Given that the side length of the cube is \( 9 \) centimeters, we can substitute this value into the formula:
\[
S = 6 \times (9 \, \text{cm})^2
\]
\[
S = 6 \times 81 \, \text{cm}^2
\]
\[
S = 486 \, \text{cm}^2
\]
Therefore, the surface area of the cube is \( 486 \, \text{cm}^2 \).
The correct answer is **D. 486 cm²**.