To calculate the surface area of a cube, you can use the formula:
\[ \text{Surface Area} = 6s^2 \]
where \(s\) is the length of one side of the cube.
In this case, the only number provided is 1.5. Assuming this is the length of one side of the cube, you can substitute \(s = 1.5\) into the formula:
\[ \text{Surface Area} = 6(1.5)^2 \]
Calculating \( (1.5)^2 \):
\[ (1.5)^2 = 2.25 \]
Now substitute this back into the formula:
\[ \text{Surface Area} = 6 \times 2.25 = 13.5 \]
So, the surface area of the cube is 13.5 square meters.