Answer:
27 cubic feet
Step-by-step explanation:
The volume of a cube with side length L is given by
![V=L^3](https://img.qammunity.org/2023/formulas/mathematics/college/xmbwkde63lcdipk8i5ykpjnajl8n33elpx.png)
Now in our case, L = 3 ft; therefore, the volume is
![V=3^3](https://img.qammunity.org/2023/formulas/mathematics/college/ouydr2y80vblfszuvf1l59271qd5skzux2.png)
which simplifies to give
![\boxed{V=27\text{ ft}^3.}](https://img.qammunity.org/2023/formulas/mathematics/college/8ojtmlyc7thoclc556bm9hz49pqu9t3155.png)
which is our answer!
Hence, the volume of the cube with the side length of 3 cm is 27 cubic cm.