What is the surface area of this cube?

Question

the image shows a box with 3ft on it

(1 point)
Responses

18 ft2
18 ft2

36 ft2
36 ft2

54 ft2
54 ft2

27 ft2

Answer 1

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

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

where \( a \) is the length of one side of the cube.

Given that the side length is 3 ft:

1. Calculate \( a^2 \): \[ a^2 = 3^2 = 9 , \text{ft}^2 \]

2. Multiply by 6: \[ \text{Surface Area} = 6 \times 9 = 54 , \text{ft}^2 \]

So, the surface area of the cube is 54 ft².